Human activities such as pollution , like trash , or boat oil can effect the waters that house 100 of creature and as for nitrogen cycle things like forest burning and fossil fuel combustion can result in the increased deposition of nitrogen from atmospheric sources
Well, if a students wants to determine the effects of fertilizer on corn growth, they could set up a experiment.
There would be two groups of corn each exposed to the same conditions. The only difference is that one of the groups is given fertilizer. The other isn’t, meaning that it is the control group.
Answer : horse mare and a donkey jack hybrid of both
Explanation: