Australia/Oceania is the smallest continent
Answer:
There are two primary scales used to measure earthquakes: the Richter scale and the Mercalli scale.
Explanation:
The Richter scale is most common in the United States, while worldwide, scientists rely on the Mercalli scale.
<span>C.A floating pile of oil-soaked logs in the Cuyahoga River caught fire, and the resulting media attention led to the first Earth Day.</span>
D. Iowa
The corn belt covers Western Indiana, Illinois, Iowa, Eastern Nebraska, and Eastern Kansas. In these states, corn is one of the dominant crops.