Environment & Ecology Quiz

Learn about ecosystems, biodiversity, climate change and conservation with a free environment and ecology quiz. Questions with answers.

The environment and ecology quiz covers ecosystems, food chains, biodiversity, national parks, pollution, climate change and conservation efforts in India and worldwide, a topic that appears often in competitive exams.

How to play the Environment & Ecology Quiz

1. Sign in and start the quiz. You get 15 random questions from a bank of 98.
2. Choose one of four options for each question, or skip it and move on.
3. Use lifelines when you are stuck: Hint, 50/50, Audience poll and Change question.
4. See your score at the end and find all your results in your profile.

Sample Environment & Ecology questions with answers

1. Which gas do plants absorb from the air for photosynthesis?

   • Oxygen
   • Carbon dioxide
   • Hydrogen
   • Nitrogen

   Answer: Carbon dioxide - Plants take in carbon dioxide and release oxygen during photosynthesis.

2. In which country is the city of Ramsar, after which the wetland convention is named?

   • Iran
   • India
   • Kenya
   • Brazil

   Answer: Iran - The convention was signed in Ramsar, Iran, in 1971.

3. World Water Day is observed on:

   • 22 April
   • 5 June
   • 21 March
   • 22 March

   Answer: 22 March - World Water Day is on 22 March.

4. Project Tiger was launched in India in which year?

   • 1972
   • 1973
   • 1992
   • 1980

   Answer: 1973 - Project Tiger began on 1 April 1973.

5. Who is known as the "Birdman of India"?

   • Salim Ali
   • Jim Corbett
   • Madhav Gadgil
   • M. S. Swaminathan

   Answer: Salim Ali - Ornithologist Salim Ali pioneered bird surveys in India.

6. Excess nutrients in a water body causing algal bloom is called:

   • Biomagnification
   • Eutrophication
   • Desertification
   • Acidification

   Answer: Eutrophication - Eutrophication depletes oxygen in water and harms aquatic life.

7. Which term describes all the living and non-living things interacting in an area?

   • Population
   • Habitat
   • Species
   • Ecosystem

   Answer: Ecosystem - An ecosystem includes organisms and their physical environment.

8. Which of these is a renewable source of energy?

   • Petroleum
   • Coal
   • Natural gas
   • Solar energy

   Answer: Solar energy - Solar energy is naturally replenished.

9. The olive ridley turtles mass nesting ("arribada") happens mainly on the coast of:

   • Odisha
   • Gujarat
   • Goa
   • Kerala

   Answer: Odisha - Gahirmatha and Rushikulya in Odisha host mass nesting.

10. Which is the most abundant gas in the Earth's atmosphere?

    • Nitrogen
    • Carbon dioxide
    • Argon
    • Oxygen

    Answer: Nitrogen - Nitrogen makes up about 78% of the atmosphere.

Frequently asked questions

How many questions are in the Environment & Ecology Quiz?

Each round has 15 multiple-choice questions picked at random from 98 Environment & Ecology questions, so every attempt is different.

Is the Environment & Ecology Quiz free?

Yes, it is free to play. Sign in to start the quiz, and your scores are saved to your Thinkmad profile.

What lifelines can I use?

When you are stuck you can ask for a hint, use 50/50 to remove two wrong answers, check the audience poll, or change the question.

Can I see the correct answers?

Yes. After you answer, the quiz shows the correct option, and your final score lists how many answers were correct, wrong or skipped.