Answer:
The main role of carbonic anhydrase in humans is to catalyze the conversion of carbon dioxide to carbonic acid and back again. However, it can also help with CO2 transport in the blood which in turn helps respiration. It can even function in the formation of hydrochloric acid by the stomach.
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Answer:
Metamorphic rocks have been put under great pressure, heated, squashed or stretched, and fossils do not usually survive these extreme conditions.
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A fart ffffffffffffaaaaaaaaaaaaaarrrrrrrrrrrrtttttt
        
             
        
        
        
Tin, because it has five energy levels with four electrons in the fifth level
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Explanation:
Tin has an electronic configuration as 
1s2,2s2,2p6,3s2,...........4d10, 5s2,5p2
They have four valence electrons in their outer shell
Among the four diagrams given Tin is least reactive because the atomic radius of tin is largest among all four options. Due to large atomic radius electronegativity decreases and hence Tin is the least reactive element among Neon, Chlorine, gallium and tin.
The electronegativity of an element is its tendency to complete its octet by attracting electrons towards itself. Also tin is at the lowest place in the periodic table among all the four mentioned elements, its ionization energy is also low hence less electronegative and least reactive.
 
        
             
        
        
        
Answer:
Vegetation def is: growing plants, or a life without physical, mental or social activity 
Vegetative depends on the context. Mainly just means without brain activity