<span>The thing that might happen to the tree was it might get swept away by the current until it catches on something or disappears (dissolves). The tree will going to the flow of the river until it catches on something where it may disappears or dissolve.</span>
Explanation:
When there are low oxygen levels in blood, the blood pH tends to lower. This is because there is an increased level of carbon dioxide in the blood that is converted to carbonic acid by carbonic anhydrase. When carbon acid dissociates, into H⁺ and HCO₃⁻ . The H⁺ influences the increase in acidity of the blood. The kidneys will excrete most of the H⁺ and retain most of the HCO₃⁻ to help maintain the right blood pH. However, most of blood pH homeostasis is maintained largely by the lungs.
Learn More:
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There are 3 factors which are; temperature, pressure and concentration.
I belive its C
Explatatiom burning something is chemical and melting something is physical.
