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1. Which of the following is not influenced by human activities?
A. Global warming
C. Increased extinction rate of species
B. Destruction of habitats
D. None of the above
2. Which can cause air pollution?
A. Burning fossil fuels
B. Litter found on the side of the road
C. Water used as coolants by powerplants
D. None of the above
3. A farmer is using chemicals on his crops to kill insects. The chemicals the farmer uses seeps into the soil and drains into the nearby river. How does this affect the animals that live in the river?
A. The animals reproduce faster.
C. The animals change color.
B. The animals get sick and die.
D. None of the above 4. Which of the following causes most of the pollutants?
A. Drought C. Human activities
B. Storms D. Volcanic eruption
5. Which human activity would be most likely to have a negative impact on the environment?
A. Stopping the draining of swamps.
B. Planting trees to control soil erosion. C. Limiting the use of chemicals that kill weeds.
D. Burning coal and oil to generate electric power.
6.How does the green house effect affect life on earth?
A. By trapping heat
B. By trapping oxygen
C. By recycling Nitrogen
D. By cooling the temperature
7. Which of the following does not disrupt food chain and Food Web?
A. Hunting
B. Over population
C. Pollution
D. Reforestation
8. When Human made chemicals and garbage find their way into nature and harm the air, soil and water it is called?
A. Hunting
B Over population
C. Pollution
D. Reforestation
9. What is the top consumers in many food pyramids?
A. Bacteria
B. Fungi
C. Human
D. Plants
10. What is the major cause of air pollution?
A. Acid Rain
B. Oil spill
C. Factories and Cars
D. all of the above.
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