Answer:
what is the question ❓❓❓⁉️
'Climatic variations' and 'Human activities' can be regarded as the two main causes of desertification. removal of the natural vegetation cover（by taking too much fuel wood）, agricultural activities in the vulnerable ecosystems of arid and semi-arid areas, which are thus strained beyond their capacity.
Explanation:
triangle ABC is reflected across A C and then is dilated to form smaller triangle D C E
Answer:
Catastrophism.
Explanation:
According to Geology, there's a theory which held that surface, mountains, lakes, were created by suddenly because of great catastrophes like earthquakes and floods.
