Answer:
physics is the study of nature and its laws by observation and experimentation
Answer:
The correct answer is A.
Explanation:
Whispering is something done by humans.
Completely unrelated, but that is a great sentence, I want that painted as a quote on my wall.
Also, the punctiation seems right to me. But you might be able to use a ";" instead of a comma, im gonna check that real quick.