When humans clear forested land, they gain something, but they also harm the natural environment. explain the trade-off that is occurs.

when humans clear forested land, they gain supplies to keep them from going instinct, but then they also harm the wild-life but also may cause a species to die out.

Explanation:

option d is correct. corroborated sources of historical evidence   is necessary to validate a claim about an event in history.

historians tend to use written sources, but audio and visual materials as well as artifacts are important objects that supply information to modern historians.

historical sources are usually divided into two categories: primary and secondary sources. depending on the historian's intent, some sources shift their designation. determining what type of sources toimplement, and the level of credibility and reliability of those sources, is a significant step in critical thinking for the historian.

explanation:

could you give me the options ?