1. The busiest airport in India by passenger traffic is _________.
A) Indira Gandhi International Airport
B) Chhatrapati Shivaji Maharaj International Airport
C) Kempegowda International Airport
D) Rajiv Gandhi International Airport
Answer: A
Explanation: Located in Delhi, it is India’s busiest and largest airport.
2. The Indira Gandhi International Airport is located in _________.
A) Mumbai
B) Delhi
C) Kolkata
D) Hyderabad
Answer: B
Explanation: It serves as the main hub for Air India and Vistara.
3. Chhatrapati Shivaji Maharaj International Airport serves which city?
A) Pune
B) Nagpur
C) Mumbai
D) Ahmedabad
Answer: C
Explanation: It is India’s second busiest airport.
4. Which city is served by Kempegowda International Airport?
A) Chennai
B) Hyderabad
C) Bengaluru
D) Kochi
Answer: C
Explanation: Located in Devanahalli, inaugurated in 2008.
5. Rajiv Gandhi International Airport is located in _________.
A) Hyderabad
B) Chennai
C) Vishakhapatnam
D) Vijayawada
Answer: A
Explanation: It replaced Begumpet Airport in 2008.
6. Netaji Subhas Chandra Bose International Airport is in _________.
A) Guwahati
B) Kolkata
C) Patna
D) Bhubaneswar
Answer: B
Explanation: Formerly known as Dum Dum Airport.
7. Which airport serves as the primary hub for southern India?
A) Chennai International Airport
B) Bengaluru International Airport
C) Kochi International Airport
D) Hyderabad International Airport
Answer: A
Explanation: One of the oldest airports, established in 1948.
8. Which airport is the first in India to be fully powered by solar energy?
A) Bengaluru International Airport
B) Kochi International Airport
C) Delhi International Airport
D) Hyderabad International Airport
Answer: B
Explanation: Declared the world’s first fully solar-powered airport in 2015.
9. Which is the busiest airport in eastern India?
A) Patna Airport
B) Bhubaneswar Airport
C) Netaji Subhas Chandra Bose International Airport
D) Ranchi Airport
Answer: C
Explanation: Serves as the main gateway to Eastern India.
10. Sardar Vallabhbhai Patel International Airport is located in _________.
A) Surat
B) Ahmedabad
C) Vadodara
D) Rajkot
Answer: B
Explanation: Named after India’s first Deputy Prime Minister.
11. The first airport in India to be privatized was _________.
A) Delhi Airport
B) Cochin Airport
C) Mumbai Airport
D) Bangalore Airport
Answer: B
Explanation: Developed under Public–Private Partnership (PPP) model.
12. Which airport is known as “Dabolim Airport”?
A) Goa International Airport
B) Mangalore International Airport
C) Pune Airport
D) Coimbatore Airport
Answer: A
Explanation: Located at Dabolim, near Vasco-da-Gama, jointly used by Navy and civil flights.
13. The new Greenfield Airport in Goa is known as _________.
A) Manohar International Airport
B) Vasco Airport
C) Panaji Airport
D) Coastal Gateway Airport
Answer: A
Explanation: Located at Mopa, inaugurated in 2023.
14. Veer Savarkar International Airport is located in _________.
A) Chennai
B) Kochi
C) Port Blair
D) Vishakhapatnam
Answer: C
Explanation: It connects the Andaman & Nicobar Islands with mainland India.
15. Which is the highest altitude airport in India?
A) Kushok Bakula Rimpochee Airport
B) Shimla Airport
C) Kullu-Manali Airport
D) Srinagar Airport
Answer: A
Explanation: Located in Leh, Ladakh at 10,682 feet, among world’s highest.
16. Which airport serves Srinagar city?
A) Sheikh-ul-Alam Airport
B) Leh Airport
C) Jammu Airport
D) Pathankot Airport
Answer: A
Explanation: Named after a 14th-century Kashmiri saint.
17. Which airport serves as the main aviation hub of Northeast India?
A) Shillong Airport
B) Imphal Airport
C) Lokpriya Gopinath Bordoloi International Airport
D) Agartala Airport
Answer: C
Explanation: Located in Guwahati, named after Assam’s first CM.
18. The Chennai International Airport’s IATA code is _________.
A) CCU
B) DEL
C) MAA
D) HYD
Answer: C
Explanation: Derived from the city’s former name Madras.
19. Which airport was recently renamed “Deen Dayal Upadhyay Airport”?
A) Patna
B) Agra
C) Varanasi
D) Kanpur
Answer: C
Explanation: Named after Pandit Deen Dayal Upadhyay, a BJP ideologue.
20. Dr. Babasaheb Ambedkar International Airport is located in _________.
A) Aurangabad
B) Nagpur
C) Pune
D) Nashik
Answer: B
Explanation: Named after the architect of the Indian Constitution.
21. Which airport serves the city of Jaipur?
A) Maharana Pratap Airport
B) Devi Ahilya Bai Holkar Airport
C) Jaipur International Airport
D) Sardar Patel Airport
Answer: C
Explanation: Handles both domestic and international flights.
22. Raja Bhoj Airport is located at _________.
A) Gwalior
B) Indore
C) Bhopal
D) Ujjain
Answer: C
Explanation: Named after the legendary king Raja Bhoj.
23. Devi Ahilya Bai Holkar Airport serves _________.
A) Bhopal
B) Indore
C) Gwalior
D) Rewa
Answer: B
Explanation: Named after the Maratha queen Ahilyabai Holkar.
24. The main airport serving Chandigarh is _________.
A) Amritsar Airport
B) Shaheed Bhagat Singh International Airport
C) Pathankot Airport
D) Jammu Airport
Answer: B
Explanation: Named after the Indian revolutionary.
25. Which airport connects Sikkim with the rest of India?
A) Bagdogra Airport
B) Pakyong Airport
C) Tezpur Airport
D) Shillong Airport
Answer: B
Explanation: Inaugurated in 2018, located near Gangtok.
26. Which is the main airport serving Kerala’s capital city, Thiruvananthapuram?
A) Cochin International Airport
B) Kannur International Airport
C) Trivandrum International Airport
D) Calicut International Airport
Answer: C
Explanation: It’s Kerala’s oldest airport and serves the state capital.
27. Which airport serves the city of Kozhikode in Kerala?
A) Kannur Airport
B) Calicut International Airport
C) Cochin Airport
D) Trivandrum Airport
Answer: B
Explanation: Located at Karipur, it is the third-busiest airport in Kerala.
28. Kannur International Airport is located in which Indian state?
A) Tamil Nadu
B) Kerala
C) Karnataka
D) Goa
Answer: B
Explanation: Opened in 2018, Kannur became Kerala’s fourth international airport.
29. The main airport of Tamil Nadu’s Coimbatore city is _________.
A) Madurai Airport
B) Salem Airport
C) Coimbatore International Airport
D) Tiruchirappalli Airport
Answer: C
Explanation: Handles both domestic and international traffic from western Tamil Nadu.
30. The airport serving Madurai city in Tamil Nadu is called _________.
A) Meenakshi Airport
B) Madurai International Airport
C) South Tamil Nadu Airport
D) Pandya Airport
Answer: B
Explanation: Upgraded to international status in 2012.
31. The Tiruchirappalli International Airport is popularly known as _________.
A) Trichy Airport
B) Madurai Airport
C) Coimbatore Airport
D) Salem Airport
Answer: A
Explanation: It connects central Tamil Nadu with Gulf countries.
32. The main airport serving Pune city is _________.
A) Lohegaon Airport
B) Shivaji Nagar Airport
C) Kolhapur Airport
D) Shirdi Airport
Answer: A
Explanation: Shared with Indian Air Force, serving both civil and defense operations.
33. The domestic airport at Aurangabad is named after _________.
A) Chhatrapati Shivaji
B) Dr. Babasaheb Ambedkar
C) Aurangzeb
D) Sambhaji Maharaj
Answer: A
Explanation: It’s called Chhatrapati Shivaji Maharaj Airport (Aurangabad).
34. The new Greenfield Airport in Maharashtra under construction is located at _________.
A) Pune
B) Nagpur
C) Navi Mumbai
D) Nashik
Answer: C
Explanation: The Navi Mumbai International Airport will ease congestion at Mumbai Airport.
35. Birsa Munda Airport is located in _________.
A) Ranchi
B) Jamshedpur
C) Dhanbad
D) Bokaro
Answer: A
Explanation: It is Jharkhand’s main airport, named after tribal leader Birsa Munda.
36. The main airport of Bihar is ________.
A) Gaya International Airport
B) Patna (Jay Prakash Narayan) Airport
C) Darbhanga Airport
D) Muzaffarpur Airport
Answer: B
Explanation: Named after the freedom fighter Jay Prakash Narayan.
37. Gaya International Airport is primarily used for _________.
A) Industrial cargo
B) Buddhist pilgrimage
C) Military operations
D) Regional flights only
Answer: B
Explanation: Serves Bodh Gaya, attracting pilgrims from Sri Lanka, Japan, and Thailand.
38. Darbhanga Airport (Bihar) operates under which scheme?
A) UDAN (Ude Desh ka Aam Nagrik)
B) PPP Model
C) Smart City Plan
D) CSR Initiative
Answer: A
Explanation: Part of RCS–UDAN, connecting smaller towns.
39. The main airport of Chhattisgarh is _________.
A) Jagdalpur Airport
B) Raipur Airport (Swami Vivekananda Airport)
C) Korba Airport
D) Bilaspur Airport
Answer: B
Explanation: Named after Swami Vivekananda, it’s the busiest in central India.
40. Devi Ahilya Bai Holkar Airport serves which state?
A) Rajasthan
B) Madhya Pradesh
C) Maharashtra
D) Gujarat
Answer: B
Explanation: It serves Indore, the commercial capital of MP.
41. The Maharana Pratap Airport is located in _________.
A) Jaipur
B) Udaipur
C) Jodhpur
D) Kota
Answer: B
Explanation: Named after the Mewar ruler Maharana Pratap Singh.
42. The Jodhpur Airport is a _________.
A) Purely commercial airport
B) Joint civil and military airport
C) Cargo-only airport
D) Private airstrip
Answer: B
Explanation: Used by Indian Air Force and civil flights.
43. The main airport of Punjab located near Amritsar is called _________.
A) Bhagat Singh Airport
B) Guru Nanak Dev Airport
C) Sri Guru Ram Dass Jee International Airport
D) Amritsar Civil Airport
Answer: C
Explanation: Named after the fourth Sikh Guru, connects to UK, Canada, Middle East.
44. Which airport serves the Union Territory of Jammu & Kashmir?
A) Sheikh-ul-Alam Airport
B) Kushok Bakula Rimpochee Airport
C) Jammu Airport
D) All of the above
Answer: D
Explanation: These three airports serve Srinagar, Leh, and Jammu respectively.
45. The airport in Himachal Pradesh known for its scenic beauty is _________.
A) Kangra (Gaggal) Airport
B) Kullu-Manali Airport
C) Shimla Airport
D) All of the above
Answer: D
Explanation: Himachal has three operational airports, all amidst mountains.
46. Lokpriya Gopinath Bordoloi Airport serves which state?
A) Nagaland
B) Assam
C) Manipur
D) Meghalaya
Answer: B
Explanation: Located in Guwahati, it’s the gateway to Northeast India.
47. The Imphal International Airport is located in which state?
A) Nagaland
B) Assam
C) Manipur
D) Mizoram
Answer: C
Explanation: The second-largest airport in Northeast India after Guwahati.
48. Lengpui Airport serves which northeastern state?
A) Meghalaya
B) Mizoram
C) Tripura
D) Nagaland
Answer: B
Explanation: Built and owned by the Mizoram government, located near Aizawl.
49. Agartala’s new international airport is named after which personality?
A) Maharaja Bir Bikram Kishore Manikya
B) Rabindranath Tagore
C) Rani Gaidinliu
D) Bhupen Hazarika
Answer: A
Explanation: Tripura’s king who laid the foundation of Agartala Airport.
50. Which of the following states has the highest number of international airports in India?
A) Maharashtra
B) Tamil Nadu
C) Kerala
D) Karnataka
Answer: C
Explanation: Kerala has four international airports – Kochi, Trivandrum, Calicut, Kannur.
51. Which ministry regulates civil aviation in India?
A) Ministry of Transport
B) Ministry of Civil Aviation
C) Ministry of Infrastructure Development
D) Ministry of Commerce
Answer: B
Explanation: It formulates policies and regulations for air transport, airports, and safety.
52. The Airports Authority of India (AAI) was established in which year?
A) 1985
B) 1990
C) 1995
D) 2000
Answer: C
Explanation: AAI was formed on 1 April 1995 by merging the National Airports Authority and the International Airports Authority.
53. The headquarters of the Airports Authority of India (AAI) is located in _________.
A) Mumbai
B) Kolkata
C) New Delhi
D) Hyderabad
Answer: C
Explanation: AAI HQ is in Rajiv Gandhi Bhavan, Safdarjung Airport campus.
54. The Directorate General of Civil Aviation (DGCA) is responsible for _________.
A) Aviation policy formulation
B) Aircraft accident investigation
C) Civil aviation safety and licensing
D) Airport construction
Answer: C
Explanation: DGCA ensures airworthiness and pilot licensing standards.
55. The Bureau of Civil Aviation Security (BCAS) deals with _________.
A) Air Traffic Control
B) Airport Security measures
C) Aircraft maintenance
D) Customs clearance
Answer: B
Explanation: BCAS under MoCA frames aviation security norms and inspections.
56. The regional connectivity scheme launched by Government of India in 2016 is _________.
A) UDAN
B) SARAS
C) VAYU Link
D) Sky India
Answer: A
Explanation: UDAN (Ude Desh ka Aam Nagrik) aims to connect small towns and improve regional air connectivity.
57. The nodal agency for implementing the UDAN scheme is _________.
A) DGCA
B) BCAS
C) AAI
D) Air India
Answer: C
Explanation: AAI executes the UDAN scheme and develops regional airports.
58. Which of the following airports was developed under the UDAN scheme?
A) Darbhanga Airport (Bihar)
B) Shivamogga Airport (Karnataka)
C) Rupsi Airport (Assam)
D) All of the above
Answer: D
Explanation: These airports were revived or constructed to enhance regional connectivity.
59. The Greenfield Airport in Uttar Pradesh near Delhi is _________.
A) Kushinagar Airport
B) Jewar Airport (Noida International Airport)
C) Kanpur Airport
D) Varanasi Airport
Answer: B
Explanation: Set to be India’s largest airport, developed by Zurich Airport International AG.
60. Kushinagar International Airport (U.P.) is significant because _________.
A) It serves Ayodhya
B) It is a Buddhist pilgrimage gateway
C) It is India’s first cargo airport
D) It is military-only
Answer: B
Explanation: Opened in 2021 for international flights to Buddhist nations.
61. Which airport is being built in Arunachal Pradesh as a Greenfield project?
A) Tezu Airport
B) Pasighat Airport
C) Donyi Polo Airport (Itanagar)
D) Imphal Airport
Answer: C
Explanation: Inaugurated in 2022, it’s Arunachal’s first Greenfield airport.
62. Which airport in Maharashtra is being developed to ease congestion of Mumbai?
A) Nashik Airport
B) Navi Mumbai International Airport
C) Kolhapur Airport
D) Aurangabad Airport
Answer: B
Explanation: Under PPP model between Adani Group and CIDCO.
63. Which Indian airport was adjudged the World’s Best Airport in 2023 (4–6 million passenger category) by ACI?
A) Delhi Airport
B) Bengaluru Airport
C) Hyderabad Airport
D) Kochi Airport
Answer: C
Explanation: Rajiv Gandhi International Airport won ACI’s ASQ award.
64. Which airport is being developed as a new Greenfield airport for Chennai?
A) Sriperumbudur Airport
B) Hosur Airport
C) Vellore Airport
D) Salem Airport
Answer: A
Explanation: Proposed as Chennai’s second international airport.
65. Which Indian airport has been ranked among the Top 10 Environmentally Sustainable Airports globally?
A) Delhi Airport
B) Kochi Airport
C) Bengaluru Airport
D) Hyderabad Airport
Answer: A
Explanation: India’s first airport to achieve Carbon Neutral Level 4+ certification.
66. The Airports Economic Regulatory Authority (AERA) was established in _________.
A) 2004
B) 2008
C) 2010
D) 2012
Answer: B
Explanation: AERA regulates tariffs and aeronautical charges for major airports.
67. The headquarters of DGCA is in _________.
A) Mumbai
B) New Delhi
C) Chennai
D) Kolkata
Answer: B
Explanation: DGCA is located at Opposite Safdarjung Airport, New Delhi.
68. The logo of AAI features a _________.
A) Flying bird
B) Runway and aircraft symbol
C) Tricolor wheel
D) Map of India
Answer: B
Explanation: It signifies connectivity and flight safety.
69. Which scheme aims at developing 100 under-served airports in India?
A) UDAN 2.0
B) RCS (Regional Connectivity Scheme)
C) Bharat Udan Yojana
D) Smart Airport Mission
Answer: B
Explanation: RCS is a component of UDAN scheme.
70. The first water aerodrome in India was inaugurated at _________.
A) Varanasi
B) Sabarmati Riverfront, Ahmedabad
C) Kevadia (Statue of Unity)
D) Kochi Backwaters
Answer: C
Explanation: Launched in 2020 for seaplane operations under UDAN scheme.
71. Which state has the highest number of Greenfield airports under development (as of 2025)?
A) Uttar Pradesh
B) Andhra Pradesh
C) Gujarat
D) Maharashtra
Answer: A
Explanation: Projects include Jewar, Ayodhya, Kushinagar and Varanasi expansions.
72. Which new international airport was inaugurated at Ayodhya in 2023?
A) Lord Ram Airport
B) Maharishi Valmiki Airport
C) Maryada Purushottam Shri Ram International Airport
D) Ayodhya Greenfield Airport
Answer: C
Explanation: Inaugurated by PM Modi in Dec 2023 to boost religious tourism.
73. The first airport in India to operate fully on hydrogen-based fuel is being planned at _________.
A) Delhi
B) Kochi
C) Hyderabad
D) Bengaluru
Answer: D
Explanation: BIAL has announced a hydrogen energy pilot project with Airbus and CSIR.
74. Which of the following is NOT a Greenfield airport?
A) Hyderabad (RGIA)
B) Bengaluru (KIA)
C) Chennai (MAA)
D) Donyi Polo (Itanagar)
Answer: C
Explanation: Chennai is a Brownfield airport, upgraded from an existing facility.
75. Which airport is jointly operated by AAI and the Indian Navy?
A) Goa (Dabolim) Airport
B) Pune Airport
C) Port Blair Airport
D) All of the above
Answer: D
Explanation: These airports serve both civil and military operations.
76. The IATA code for Indira Gandhi International Airport (Delhi) is _________.
A) DEL
B) DLI
C) DELI
D) DHI
Answer: A
Explanation: DEL is used in all ticketing and baggage tags worldwide for Delhi Airport.
77. The IATA code for Mumbai’s Chhatrapati Shivaji Maharaj International Airport is _________.
A) MBI
B) MUM
C) BOM
D) MUMI
Answer: C
Explanation: Derived from Mumbai’s former name, Bombay.
78. The airport code “BLR” belongs to _________.
A) Hyderabad
B) Bengaluru
C) Bhubaneswar
D) Bareilly
Answer: B
Explanation: “BLR” refers to Kempegowda International Airport.
79. “MAA” is the code for which Indian airport?
A) Madurai
B) Mangalore
C) Chennai
D) Kochi
Answer: C
Explanation: “MAA” stands for Madras Airport (now Chennai).
80. The airport code “HYD” is assigned to _________.
A) Hyderabad
B) Haldia
C) Howrah
D) Hubballi
Answer: A
Explanation: Represents Rajiv Gandhi International Airport.
81. The airport code “COK” refers to _________.
A) Kolkata
B) Kochi
C) Kodaikanal
D) Kohima
Answer: B
Explanation: COK = Cochin (Kochi) International Airport.
82. Which is the first Indian airport to be awarded “Carbon Neutral Level 4+” by ACI?
A) Delhi
B) Kochi
C) Hyderabad
D) Bengaluru
Answer: A
Explanation: Indira Gandhi International Airport became Asia-Pacific’s first carbon-neutral airport.
83. Which Indian airport received the “Best Airport in India and South Asia” award in 2023 (Skytrax World Rankings)?
A) Delhi
B) Bengaluru
C) Hyderabad
D) Kochi
Answer: A
Explanation: Delhi Airport has consistently topped Skytrax rankings since 2019.
84. The busiest single-runway airport in India is _________.
A) Delhi
B) Mumbai
C) Bengaluru
D) Chennai
Answer: B
Explanation: Mumbai handles over 900 flights daily with just one active runway.
85. Which Indian airport is known as “the gateway to North-East India”?
A) Dibrugarh
B) Guwahati (Lokpriya Gopinath Bordoloi)
C) Imphal
D) Agartala
Answer: B
Explanation: It connects all NE capitals and Kolkata/Delhi.
86. Which Indian airport is named after the spiritual leader “Sri Sathya Sai Baba”?
A) Puttaparthi Airport
B) Vijayawada Airport
C) Tirupati Airport
D) Visakhapatnam Airport
Answer: A
Explanation: Serves the pilgrimage town Puttaparthi in Andhra Pradesh.
87. Which airport is also known as “Veer Surendra Sai Airport”?
A) Jharsuguda Airport
B) Bhubaneswar Airport
C) Raipur Airport
D) Ranchi Airport
Answer: A
Explanation: Named after freedom fighter Veer Surendra Sai, Odisha.
88. Which of the following airports has the nickname “Gateway of Kerala”?
A) Kochi International Airport
B) Trivandrum International Airport
C) Calicut International Airport
D) Kannur International Airport
Answer: B
Explanation: It’s the first airport in Kerala and gateway for southern Kerala.
89. Which Indian airport is jointly operated by AAI and HAL (Hindustan Aeronautics Limited)?
A) Bengaluru Airport
B) Hyderabad Airport
C) Kanpur Airport
D) Lucknow Airport
Answer: C
Explanation: The civil enclave is within the HAL Chakeri Air Base.
90. The airport named after Maharaja Bir Bikram Kishore Manikya is located in _________.
A) Mizoram
B) Tripura
C) Manipur
D) Assam
Answer: B
Explanation: It serves Agartala, Tripura’s capital.
91. Which new airport was inaugurated in Shivamogga, Karnataka in 2023?
A) Kuvempu Airport
B) Malnad Greenfield Airport
C) Rani Chennamma Airport
D) Shivamogga Airport
Answer: D
Explanation: Named after Kuvempu, a noted Kannada poet.
92. Which Indian airport is named after a Jain saint?
A) Shravana Airport
B) Bhairon Singh Airport
C) Bahubali Airport
D) none of the above
Answer: D
Explanation: Currently, no major Indian airport is named after a Jain saint.
93. Which airport is closest to the Himalayas?
A) Shimla Airport
B) Kushok Bakula Rimpochee Airport (Leh)
C) Dehradun Airport
D) Pantnagar Airport
Answer: B
Explanation: Situated at 10,682 ft, surrounded by the Himalayas.
94. Which airport connects the Andaman and Nicobar Islands with mainland India?
A) Radhanagar Airport
B) Veer Savarkar International Airport
C) Nicobar Island Airport
D) Bay Island Airport
Answer: B
Explanation: Located at Port Blair, serves as the main gateway.
95. The first airport in India to introduce facial recognition boarding under “DigiYatra” program was _________.
A) Hyderabad
B) Delhi
C) Varanasi
D) Bengaluru
Answer: C
Explanation: DigiYatra launched first at Varanasi in December 2022.
96. Which airport was named “Most Sustainable Airport” in the Asia-Pacific region (2023)?
A) Kochi International Airport
B) Delhi International Airport
C) Hyderabad International Airport
D) Bengaluru International Airport
Answer: B
Explanation: Recognized for eco-friendly operations and energy efficiency.
97. Which is India’s first airport fully built and operated by a state government?
A) Kochi
B) Kannur
C) Lengpui
D) Donyi Polo
Answer: C
Explanation: Constructed and managed entirely by the Mizoram government.
98. Which Indian city’s airport is known for having a runway that extends into the sea?
A) Mangalore
B) Port Blair
C) Dabolim (Goa)
D) Agatti (Lakshadweep)
Answer: D
Explanation: The runway is built on a narrow coral island strip in the Arabian Sea.
99. The smallest airport in India (by runway length and operations) is _________.
A) Shimla Airport
B) Agatti Airport
C) Pakyong Airport
D) Kullu-Manali Airport
Answer: A
Explanation: Built on a hilltop with a short runway of only 1,230 meters.
100. Which airport is India’s first and only one built under the Public–Private Partnership (PPP) model?
A) Kochi International Airport
B) Delhi International Airport
C) Mumbai International Airport
D) Bengaluru International Airport
Answer: A
Explanation: It’s India’s first PPP airport and the world’s first fully solar-powered airport.