Answer:
When the rider is at the top of the hill, her potential energy is the greatest, and her kinetic energy is the least.
Explanation:
I believe the answer would be D. If a plant were to have poisonous parts it could me the possibility that a child could become seriously ill.
The correct answer is It would be more difficult for DNA to unzip since it would require more energy to break the bonds.
That is because it would most probably be a covalent bond and such a bond is stronger than a hydrogen bond which means that more energy would be needed to break it.
ANSWER: C, the continents were at one time joined together.
REASONING: Alfred Wegener was the first person to propose the scientific theory of Continental Drift. Continental Drift is a theory that supposes all the continents were at one time joined together as one large land mass. The mechanisms of continental drift can be explained by Plate Tectonics.
