Answer:
A war between the Soviet Union and the United States and their allies. It was called the Cold War because there was no large scale fighting. The 1950s was marked by the post World War II boom. The role of people changed .
Explanation:
Answer:
Continued environmental degradation can completely destroy the various aspects of the environment such as biodiversity, ecosystems, natural resources, and habitats. For instance, air pollution can lead to the formation of acid rain which can in turn reduce the quality of natural water systems by making them acidic.
Explanation:
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B, crust because its on top of the earths outer most layer.
Answer:
Event recording
Explanation:
Sue is using event recording. Event record is the number of times an observer or researcher records/documents the occurrence of an action, activity or behavior in his/her study subject. marking on a tally sheet and counting how many times the student got out of his seat by Sue is an example of event recording.