Answer:
Charles Darwin and Alfred Russel wallace in the 19th century
so the answer is d
Answer:
A- use sunlight to make food
Explanation:
<span>The most common contaminant to be found in drinking water is microorganisms, nitrate and arsenic. Though water quality and monitoring has come a long way over the past few years, viruses, bacteria and protozoa like giardia lambia can be found in the water and often leads to wide spread illnesses.</span>
For what subjects? I guess I can try :)
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Answer:
By studying fossils, scientists learn how much organisms have changed as life developed on Earth. There are space in the fossil record because many early forms of life were soft-bodied, which means that they have left few traces behind.
Hope it helps.
