Answer:
.40+900=900.40+300=1200.40
Explanation:
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Well in the population from births and death it’s often combined and referred as natural increase or change, populations grow or shrink depending on if they gain people faster than lose them.
The correct answer is option b, that is, the addition of carbon dioxide to the atmosphere.
If the concentration of carbon dioxide upsurges in the atmosphere due to the enhanced rate of outgassing, there will be a constant elevation in the global temperature. The elevating temperature and more dissolved carbon dioxide will result in enhanced weathering of crystal rocks as a consequence of faster rate of reactions and greater acidity.