Answer:
B) X rays do not penetrate Earth's atmosphere
Explanation:
The Chandra X-Ray observatory should operate in space due to the nature of the radiation it is using. X-rays are high energy electromagnetic radiations. The observatory will not be able to function properly since it uses x-ray because, the rays cannot penetrate the earth's atmosphere. A radiation of this type would easily be cut off by the particles in the atmosphere. The observatory has to be positioned outside of the earth.
The Han Chinese are the ethnic majority in China<span />
It really depends on which war the question is referring to, but if it's referring to WWII the answer would be true.
True.
The word Mesopotamia means between the rivers. Mesopotamia is nestled between the Tigris and Euphrates Rivers and forms the eastern half of the Fertile Crescent. Early civilisations showed up about six thousand years ago.
