Answer:
(in some cosmological theories) nonluminous material that is postulated to exist in space and that could take any of several forms including weakly interacting particles (cold dark matter) or high-energy randomly moving particles created soon after the Big Bang (hot dark matter).
Explanation:
D because you should always do research upon the topic to get all the facts about the dangers of the canopy roads.
Answer:
The executive branch of the U.S. government is responsible for enforcing laws; its power is vested in the President. The President acts as both the head of state and commander-in-chief of the armed forces
Explanation:
They show the most important substances as it can show how they reac in a chemical and how they are able to react
The 19th century figure that is known for opening Japan to US trade is :
Mathew Perry
he was a commodore of United States navy that opened japan US Trade
hope this helps