1) What is ammonia? a) A type of water b) A form of nitrogen 2) What do plants absorb through their roots? a) Oxygen b) Nitrates 3) What causes algal blooms? a) Too much nitrogen b) Too little sunlight 4) What do algal blooms remove from the water? a) Oxygen b) Carbon dioxide 5) What do farmers use to help crops grow? a) Fertilizers b) Rocks 6) What do fertilizers contain? a) Only water b) Nitrates and ammonia 7) What can too much fertilizer cause? a) Cleaner water b) Pollution 8) What does pollution harm? a) Only plants b) Animals, plants, and people 9) What is a common pollutant in water? a) Nitrates b) Sand 10) How can pollution be reduced? a) Using less fertilizer b) Adding more water

Environmental Science Quiz

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