Answer:
Dry and barren land becomes desert.
Explanation:
Desertification is a process when the desert expands at the expense of an area that was not a desert. Basically, an area that was a steppe, for example, because of mismanagement or climate changes, can gradually become a desert as it gets drier and the land barren, so the desert will replace it.
In Africa, desertification is a big problem. Both, human mismanagement of soil and climate change have resulted in damaging the biomes that are close to the deserts, mainly the steppes. The soil is often left without nutrients so it can not support vegetation, which in turn also affects the water sources and precipitation paterns in a negative manner. The land becomes barren and drier than it was, and being close to the desert, the winds quickly manage to cover the surface with sand, converting it into a desert.
Younger as the sedimentary rock was likely deposited on top of the igneous rock and the scattered pieces are parts of the igneous rock that had been eroded prior to deposition and lithification of the sedimentary rock
We can study past climate and change of climate in the future by dating the ice cores
Answer:
It can be found northeast of africa, and contains the Yangtze river inside of it.
Answer: Sand and gravel deposits.
Explanation:
Glaciation is a natural phenomenon in which the temperature of the earth drops considerably over a long period, this causes the glaciers of the poles to expand to cover large extensions of continental and oceanic terrain.
When the temperature rises again and the ice from the glaciers recedes, large deposits of sand and gravel are formed. This is because the deglazing process is slow, and the retreating glaciers remove the surface layers of the earth, therefore mineral deposits are formed. Also, the deglaciation process forms rivers and lakes that leave large deposits of sand and gravel.
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