16. Which of the following is NOT a function of wetlands?
a) Flood control
b) Water purification
c) Habitat for wildlife
d) Soil erosion
17. The clearing of forests to make way for agriculture or urban development is called:
a) Deforestation
b) Afforestation
c) Reforestation
d) Desertification
18. Which of the following is an example of an abiotic factor?
a) Soil
b) Plants
c) Animals
d) Fungi
19. The loss of biodiversity due to human activities is called:
a) Pollution
b) Desertification
c) Eutrophication
d) Extinction
20. Which of the following is an example of a primary consumer?
a) Herbivore
b) Carnivore
c) Omnivore
d) Decomposer