I can give you one:
One of the theories (in which i mostly believe in) is the one when every period of time, the climate changes. Now, we are in the warmth period, but after this period, there will be a cooler climate, and keeps repeating every while (think about the ice age)
Answer:
Option (C)
Explanation:
The lithosphere refers to the outer portion of the earth that cool and very rigid. It covers the crust and a very small portion of the upper mantle. It lies just above the asthenosphere layer. This layer is broken down into many small and large plates which are commonly known as tectonic plates.
The asthenosphere covers a portion of the asthenosphere and it supports the movement of lithospheric plates over it. This is possible because of its property that allows the rocks of lithosphere to float above it. The asthenosphere is comparatively weaker and though the rocks are solid in this region, but they tends to flow during the time of deformation.
Both these two layers plays an important role in the plate tectonic movement.
Thus, the correct answer is option (C).
The countries in the Horn of Africa are Djibouti, Eritrea, Ethiopia and Somalia. The smallest country in the Horn of Africa is Djibouti, whose capital shares the same name as the country (Djibouti). The Horn of Africa covers the part of Africa that is the most eastern part of the continent and Djibouti lies not far from the Arabian Peninsula, with only a little bit of waterway (the sea) dividing it from Yemen. Djibouti is a multi-ethnic country with Arab and French being the two main languages.
B. The uppermost part of the mantle is made up of the tectonic plates.