The method when an ecologist sets up a greenhouse and measures the effects of different levels of carbon dioxide on an endangered plant species is called experimenting. I hope that this is the answer that you were looking for and it has helped you.
Answer:
Colonization ruptured many ecosystems, bringing in new organisms while eliminating others. The Europeans brought many diseases with them that decimated Native American populations. Colonists and Native Americans alike looked to new plants as possible medicinal resources.
Explanation:
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Answer: the second one
Explanation:
It is the answer because The African Americans were divided in choosing which side they wanted to be on.
The policy of détente pursued by President Richard Nixon was an effort to "<span>(3) reduce conflict with the Soviet Union" although it was up against a period of stagflation. </span>