Answer:
1. The mesosphere is very important for earth’s protection. The mesosphere burns up most meteors and asteroids before they are able to reach the earth’s surface. The mesosphere is the coldest atmospheric layer surrounding the earth. It becomes cold enough to freeze water vapour in its atmosphere into ice clouds.
2. the layer of the earth's atmosphere that contains a high concentration of ions and free electrons and is able to reflect radio waves. It lies above the mesosphere and extends from about 50 to 600 miles (80 to 1,000 km) above the earth's surface.
Explanation:
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as useful is the answer. Enlightenment philosophers John Locke, Charles Montesquieu, and Jean-Jacques Rousseau all developed theories of government in which some or even all the people would govern. Usefulness was important. Enlightenment encourages people to think for themselves.
It depends on what you mean by "discovered." The Milky Way has been known since pre-history. Several philosophers theorized that it was made up of a large <span>number of individual faint stars, but Galileo Galilei was the first to actually demonstrate this by observing it through a telescope.</span>
Below choices should accompanied by question above:
<span>A.
It disproved the principle of superposition.
</span><span> B.
It proved igneous rocks held more information than sedimentary rocks.
</span><span>C.
Fossils could now be used to identify rock layers.
</span><span> D.
Fossils were no longer needed to study the history of Earth.
</span>
I think the answer should be B.