the answer to that is false
C---because early civilizations depended on water for themselves, animals, crops, and transportation.
Answer:
Experiments produce new ideas to explain a natural phenomenon.
Explanation:
In both cases, the controls allow scientists to quantify background variability and reject alternative hypotheses that might otherwise explain the effect of the treatment on the dependent variable. In an experiment, scientists try to manipulate as variables as possible at a time.
Antarctica was the first to realize that the ozone layer was being depleted in the 1980's
The Radical Republicans in Congress differed with Andrew Johnson about how deeply the federal government would be involved in changing southern governments and southern society after the Civil War during the period called Reconstruction. <span> Johnson, who was from Tennessee, was considered too soft on the former Confederate states. For example, he agreed to permit state governments to grant amnesty to former rebels. </span>
