Answer:
microscope parts and functions
Explanation:
no explanation for this
Answer: A
Explanation:
Oxygen makes up another 20 to 21 percent of our atmosphere. It's essential for life on Earth, and interestingly enough, it is poisonous when highly concentrated. Our concentration of 20 to 21 percent seems just right.
They survived by moving to new areas.
Potable water is water that is safe to drink
The mass of the box increased and the acceleration of the box decreased
