Answer:
The scientific notation is 4.0075 x 10^7 m
Explanation:
In this case, the Earth's circumference at the equator which is equal to 40,075,017 m can be expressed in terms of scientific notation by multiplying it to a factor of 10.
Cycling of nutrients and flow of energy
Answer:
Soo... Is that the answer you chose?
Explanation:
I think is correct.
The main purpose is communication. like when you stub your toe , your nervous system communicates to your brain to react and have pain