Answer:
because harmful substances often chemicals or microorganisms contaminate a stream, river, lake, ocean, aquifer, or other body of water, degrading water quality and rendering it toxic to humans or the environment.
Explanation:
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<h3><em>All Tutsi men, women and children were no longer citizens of a nation but cockroaches</em></h3><h3><em></em></h3><h3><em></em></h3><h3><em></em></h3><h3><em></em></h3><h3><em>In the years leading up to the 1994 Genocide against the Tutsi the government used all its propaganda machinery to spread hatred of the Tutsi.</em></h3>
Westward expansion meant that the US acquired ever increasing amounts of land, and needed people, farmers, to settle there so it could maintained without a huge military presence
If the coordinates of point A are (x, y ) the coordinates of point A´ after rotation will be (-y, x)
Example: A ( 2,3 ) and A´( -3, 2 )
Answer:
A tornado is the most likely natural dissaster to happen.