Aids is one of the disease that damage little by little the immune system until the human body die.
Answer:
<em>Direct purposes include bathing, drinking, and cooking, while examples of indirect purposes are the use of water in processing wood to make paper and in producing steel for automobiles.</em>
Explanation:
<h3>I hope this helps!!</h3>
B according to my school.
Four conditions are needed for natural selection to occur: reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population. If they are met, natural selection automatically results.