environment

3. Which man-made ecosystem is created for agricultural purposes?
4. Which type of ecosystem has low rainfall and extreme temperatures?
8. What is the ultimate source of energy in an ecosystem?
11. Which type of ecosystem exists in oceans and seas?
12. Which ecosystem component includes soil, air, and water?
14. What is the process of gradual accumulation of toxic substances in organisms called?
15. Which human activity is a major cause of biomagnification?
18. What will happen to the number of trophic levels if energy transfer is inefficient?
19. What type of consumers feed directly on producers?
20. What is the term for the movement of energy and nutrients through an ecosystem?

1. Which trophic level is occupied by carnivores in a food chain?
2. Which human activity is a major cause of biomagnification?
5. What is the term for a linear sequence of organisms where each one is eaten by the next?
6. What will happen if all decomposers are removed from an ecosystem?
7. Which abiotic factor influences the availability of water in an ecosystem?
9. Which term describes the sequence of energy transfer between organisms?
10. Which trophic level in a food web is responsible for converting solar energy into biomass?
13. Which component of the ecosystem includes plants and animals?
16. Which organisms break down dead organic matter in an ecosystem?
17. Which term describes the natural surroundings in which an organism lives?