Please help me with these ecology questions! Thank you
21. Fertilizers provide plants with
a...
Biology, 06.05.2021 02:20 transfergiecek8765
Please help me with these ecology questions! Thank you
21. Fertilizers provide plants with
a. nitrogen.
b. carbon.
c. water.
d. oxygen.
22. Which of the following convert(s) nitrogen from air into a form plants can use?
a. bacteria
b. lightning
c. sunlight
d. both a and b
23. Plants use nitrogen to make
a. carbohydrates.
b. nitrogen gas.
c. amino acids
d. both b and c.
24. An animal returns nitrogen to the environment when it
a. breathes.
b. decomposes.
c. urinates.
d. both b and c.
25. Animals get phosphorus from
a. the air.
b. eating plants.
c. water.
d. the soil.
26. Phosphorus in the soil comes from
a. rocks.
b. decaying organisms.
c. the air.
d. both a and b
Answers: 3
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Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earthโs surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.
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What is one way intensive agriculture can contribute to climate change? a. tree loss to agriculture increases earth's albedo b. livestock manure absorbs greenhouse gases c. large herds of livestock release greenhouse gases d. fewer trees are available to replenish petroleum stores appex
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