To clarify the states' rights<span />
<span>The answer is letter B. B. The environmental
protection</span>
movement was supported by public.. .
Nixon was last to react on making environmental laws,
however, because of the awareness made through the Earth Day in the US, the
president was encouraged because of the response of the first Earth Day
Celebration.
Hernando de Soto was a Spanish explorer who led the first European expedition deep into the territory of today's United States. Historians worked a lot to trace the route of his expedition. It started in 1539. in Florida: de Soto landed his ships in Tampa Bay. In 1540., they continued to move north-east, through today's Georgia, having heard the gold being mined "towards the sun's rising". The expedition continued trough present-day South Carolina and then to north, across Appalachian Mounthains of North Carolina, and after that entered Tennessee. In 1941. de Soto and his expedition turned westwards, and reached river Mississippi. De Soto was the first European man that crossed Mississippi. They continued trough modern-day Arkansas, Oklahoma and Texas, and later returned to Mississippi. De Soto died in 1942.
The answer to this question is B. This resulted in a rise in socialist and anarchist movements.