Answer:
introduces substances into an environment
Explanation:
eutrophication is just a bunch of algae in a pond or source of water. pollution is bad materials in the air. smoke and algae are substances in an environment.
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Answer: Either of the two identical cells that form when a cell divides.
Explanation:
Answer:
Soil condition directly affects crop growth.
Explanation:
Soil condition affects the crop growth directly. If a soil is in fertile condition then the growth of crop which is growing in such soil will be good but if the soil is infertile then the crop will not grow to its fullest. A fertile soil is the one which has optimum condition for growth of a crop like suitable pH, moisture retention capacity, good amount of nutrients & minerals like nitrogen, phosphorus, sodium, potassium, magnesium etc. If a soil is rich in all these constituents then the crop which is growing in this soil will be healthy. But, if a soil is infertile then the crop which is growing on that soil will be under stress and will not be able to grow completely.
C. Trawling
I just answered that question, trawling is the correct answer
The correct answer is: Hares with a mutation that causes them to change color in response to temperature rather than day length
Since the climate is changing (as a consequence of global warming) temperatures are increasing more and more through the years. These changes affect populations, so they need to adapt to new environment conditions in order to survive. In this example above, mutations within snowshoe hares that will help them to change color in response to temperature rather than day length is very advantageous. Hares will be brown more often, because there are less and less colder temperatures and snow.
