Answer:
The answers would be likely be to a.) improve the environment and b.) cut costs.
100,000 years ago is your answer
Answer:
Mass doesn't change no matter where you are or where you go.
Explanation:
Mass is what you or an object consist of. You cant change mass
Answer:
Typically in mammals, the gender of an organism is determined by the sex chromosomes. In the case of humans, this happens to be the X and the Y chromosomes. So as you may recall, if you are XX, you are female. If you are XY, you are male.