Wearing heavy or protective clothes in the cold climates is the human action that does not alter the Earth's landscape.
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The answer would be D.
As for The other options, it cannot be A because there is no way we could know if they are exactly similar. B states they are dramatically different when there is obviously some similarity. C states that they are from the same time period, which is impossible as there is no way a layer of sedimentary rock can be the same age as current day mud. There are likely many layers above the studied area that can denote the age.
(B) The clean air act
Our five most effective pieces of environmental legislation are the Clean Air Act, the Endangered Species Act, the Montreal Protocol, the Clean Water Act, and Reformation Plan No. 3 of 1970. Because of these laws, the health of Americans and the environment they inhabit have dramatically improved.
The English Channel which is part of the Atlantic Ocean.
The statement which summarizes the reason why the United States is one of the most ethnically diverse countries in the world is: B. People migrate to the United States from all over the world for economic opportunities and political freedoms that they may not have in their own countries.
Migration can be defined as the movement of a group of people from one geographical location (region) to another geographical destination, in search of better living conditions, work or social amenities.
Migration selectivity refers to the likelihood or tendency that a subset (part) of a group of people would move out (migrate) of a particular geographical location or region.
Some of the factors that influence migration selectivity include the following:
Currently, the <u>United States of America</u> is considered to be the safest, secured and best country with a thriving economy that provide jobs for its citizens and immigrants.
Hence, people usually migrate to the <u>United States of America</u> from all over the world in search of better economic opportunities and political freedoms that they may not have in their own countries
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