Q1. Which of the following is a biotic component of an ecosystem?
Q2. In a food chain Plant → Herbivore → Carnivore, the herbivore is called:
Q3. The 10% Law in ecology states that:
Q4. Decomposers in an ecosystem:
Q5. Pyramid of energy is always pyramid-shaped because:
Q6. In nitrogen cycle, nitrogen fixation converts:
Q7. Denitrification in nitrogen cycle:
Q8. Photosynthesis in carbon cycle:
Q9. Burning fossil fuels affects the carbon cycle by:
Q10. Which is NOT a threat to biodiversity?
Q11. Endangered species are those with:
Q12. Eutrophication is caused by:
Q13. Deforestation primarily leads to:
Q14. Sustainable development means:
Q15. The 3Rs of waste management are:
Q16. Invasive species threaten biodiversity by:
Q17. Which is an example of renewable energy reducing environmental impact?
Q18. Greenhouse effect is primarily caused by:
Q19. Which ecosystem has the highest biodiversity?
