Friction is directly proportional to an object’s <u><em>mass</em> </u>. Frictional force also depends on the types of <em><u>ma</u></em><em><u>t</u></em><em><u>erials</u></em> that are in contact with each other.
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Answer:
<h3> D is the answer</h3>
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Tachy- is the prefix it means fast so tachycardia is a rapid heart beat
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Answer – United States Environmental Protection Agency
The Government Agency that was created to protect our natural resources is the United States Environmental Protection Agency (U.S EPA). This agency does so by writing and enforcing regulations based on laws passed by Congress.
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