A mass extinction is the rapid decrease in something. so anytime that graph goes down drastically would be a mass extinction
Answer:
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there are five common types of clay, namely; kaolin, stoneware, ball clay, fireclay and earthenware
Explanation:
Respiration<span> is a chemical process when glucose or other sugars react with oxygen to produce energy. It produces carbon dioxide and water as waste products.</span>
The answer is GENETIC DIVERSITY and SPECIES DIVERSITY
Explanation:
Meso compounds are optically inactive stereoisomers. Despite of having chiral carbon, they do not show optical activity because it has a plane of symmetry in its structure itself. It is superposable on its mirror image.
Aldo sugars on reaction which reducing agents such as , NaBH₄ reduces the carbonyl group in the sugar to alcohol and gives corresponding alditol.
<u>The D- aldohexose which on reduction gives a meso alditol are allose and galactose. </u>
<u>The structure is shown in the image below. Thus, in allitol and galactitol formed have internal plane of symmetry which makes the optically inactive.</u>