South Africa is your answer
One main effect of the global catastrophes was the rising temperature, also known as global climate of the earth surface.
<h3>What is a green house effect?</h3>
This is a natural process that happens when the gases in Earth's atmosphere trap the Sun's heat.
Therefore, the main effect of the global catastrophes was the rising temperature, also known as global climate of the earth surface.
Read more about green house effect
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Answer: water cycle
Explanation: Water cycle is the process of constant circulation of water through sea, land and air through processes such as evaporation, precipitation, and erosion.
My guess would be D. Agriculture.
Answer:
1.Atria push blood into the ventricles
2.Venticles push blood out of the heart.