Biology, 24.03.2020 05:26 kenzieeee96
An organization that works to protect the environment notices that a large number of lake organisms are killed when a sudden algae bloom depletes the lake of oxygen. Why do they decide to test the nitrogen level in the soil of near-by farms?
A) Using too little fertilizer causes crops to leach nitrogen from lakes.
B) Overuse of fertilizer increases nitrogen levels in water runoff which can reach lakes.
C) Nitrogen levels in soil correspond to nitrogen levels in the sediment at the bottom of a lake.
D) Too little nitrogen in soil causes algae to move into aquatic environments like lakes.
Answers: 3
Biology, 22.06.2019 21:50, gungamer720
Select the correct answer. which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. c. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated. d. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea.
Answers: 1
Biology, 23.06.2019 00:30, dgadam7495
How have crops been modified? a. plants have been made more susceptible to pests b. plants have been made resistant to herbicides c. plants have been made more susceptible to herbicides d. plants have been modified to have reduced yield
Answers: 1
An organization that works to protect the environment notices that a large number of lake organisms...
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