Why was Yosemite preserved as a national park in 1906?

It was the first time the government protected land because of its natural beauty so that people could enjoy it, and we're still benefiting from their foresight today. Thanks to John Muir's passionate writing to further protect the delicate ecosystem of the High Sierra, Yosemite later became a national park

no

explanation:

according to hess's theory, when the magma cooled, it would expand and push the tectonic plates apart. it would push the north and south america plates to the west and eurasia and africa ones to the east. the atlantic ocean would get wider but the coastlines of the masses would stay the same.

harry hammond hess was a geologist and a united states navy officer in the second world war. he is considered to be one of the founding fathers of the theory of plate tectonics. he is known for his theories on sea floor spreading, stating that the movement of the continents was the result of see floor spreading. the continents are attached to the plates and do not move separately. the plates themselves shift and change shape, carrying the continents along.