Answer:
Partially correct
Explanation:
The statement is partially correct not all the materials needed for growth comes from the soil. For example carbon dioxide comes from air. The experiment that can be use is to get a pot of soil and weigh before planting on it, weigh it again after the plant has grown to a certain stage; The plant will weigh more than the difference in the weight of soil demonstrating that all the materials did not come from the soil.
You can Chanel it around a town so there is no flooding
If some place needs water then you can divert the water to the specific place
Also stopping it and creating a dam can offer the positive results of inexpensive energy, increased recreation opportunity and flood control
Hope this helps
Answer:
I believe the answer is C
sorry if I am wrong, its been a while since I did something like this
D. the number of mates on the island
their appearance changes cause different birds breeding together can make an impact of how the bird looks
If it's two different kinds of birds it's called competition.