Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain. I hope this helps
Asexual is when they reproduce by themselves and sexual is when they need a partner to reproduce or create something
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it includes geological processes that slowly alter the layout of the physical enviroment and human activity such as land conversion which can help and alter much faster and causes the extinction of many species
Hemoglobin consists of folded chains of a large number of different amino acids called polypeptides.
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