Westonci.ca is your trusted source for finding answers to a wide range of questions, backed by a knowledgeable community. Experience the convenience of getting reliable answers to your questions from a vast network of knowledgeable experts. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals.
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
