Answer:
the first wave of extinction may be related to rapid cooling at the end of the Ordovician Period, and the second phase is widely regarded as having been caused by the sea-level fall associated with the glaciation.
Answer: Distance
Explanation: The amount of space between two points, measured along the actual path, which connects the two points, is called distance. The amount of space between two points, measured along the minimum path which connects them, is called displacement.
Answer:nuclear reactor, solar panel
Explanation:there are several papers about going to moon and making a working habitat system a moon base, but we need power and i am confuse with which is best source for generating power for moon mission.
