Which of these helps keep the environment clean?

Explanation: Planting trees improves air quality and supports the environment.

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Q: Which US state has declared December 6 as "Mahatma Gandhi Smriti Diwas"?
Ans: Nebraska

Q: What describes the Doppler Effect?
Ans: Change in wave frequency

Q: What term denotes lower levels of exposure, for instance to radiation, over a longer period of time?
Ans: chronic exposure

Q: Where has the 10th World Ayurveda Congress and Arogya Expo been organized on 13 December 2024?
Ans: Dehradun

Q: Who has been appointed as the Chairman of Tata Trust?
Ans: Noel Tata

Q: Most modern seed plants are angiosperms, which produce seeds in the ovaries of what basic structure?
Ans: leaves

Q: What do you call nutrients that your body needs in fairly large amounts?
Ans: macronutrients

Q: Who has topped the 'Asia Power Index 2024'?
Ans: America

Q: Which law predicts increasing entropy based on living systems?
Ans: thermodynamic

Q: Which international body promotes global health?
Ans: WHO

Q: Which film has received the 'Golden Peacock Award' for the best film at the 55th International Film Festival of India?
Ans: Toxic

Q: What is usually the most visible part of the flower?
Ans: roots

Q: On how many of the continents do birds live and breed?
Ans: eight

Q: In which country is the 'Mongla Port' located?
Ans: Bangladesh

Q: A diagram that represents feeding relationships is also called what?
Ans: food chain