Answer:
In science, a variable is any item, factor, or condition that can be controlled or changed
B, because in all truth and honesty, stress is truly inevitable. Also, use process of elimination. I hoped that helped :)
It is called a Punnett Square
Answer:
550 milliliters of water is needed.
Explanation:
the student will need 550 milliliters of water for completing the whole experiment. 250 milliliters of water is needed for boiling purpose while on the other hand, 100 milliliters of water is needed for one process which can be repeated three times so the process needs 300 milliliters of water so by combining the 250 milliliters and 300 550 milliliters of water we get 550 milliliters of water for the whole experiment so we can say that the student needs 550 milliliters of water for the experiment.
