Smog. Im pretty sure smog is the only unhealthful air pollution on this list.
The answer is letter C.) <span>There can be alternate explanations for the same evidence.
The results of the two researchers may have been the same, but the interpretation of the data is significantly different. Their conclusions can be </span><span>further </span>supported by gathering more results from different experiments.
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D
Reason - language disorder resulting from an injury to the brain
Answer:
A is the answer as to my knowledge
Answer:
during the Cambrian Period of the Paleozoic Era.
Explanation:
The Paleozoic is the earliest era (of three) of the Phanerozoic Eon and is composed of six geologic periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian (in that order from earliest to the latest). Fish first appeared about 530 million years ago during the Cambrian explosion.
