Which statement about the cosmic microwave background isnottrue?
a) it is the result of a mixture of radiation from many independent sources, such as stars andgalaxies.
b) it is thought to be radiation that began its journey to our telescopes when the universe wasabout 380,000 years old.
c) with the exception of very small variations, it appears essentially the same in all directions inwhich we look into space.
d) its spectrum corresponds to a temperature of just under 3 degrees above absolute zero.

Choose the item that is an example of the geographic theme of place.

What are three similarities between medc countries and ledc countries?

Which is an accurate description of the physical characteristics of poland? its fertile soil is found only along riverbanks, and its mountainous region in the northwest has few mineral resources. it is mostly flat with fertile soil except in the east and northeast, and the mountainous region in the south has large deposits of coal and copper. it is covered with thick forests, and it has large reserves of coal, petroleum, and natural gas. its landscape is dominated by plateaus, mountains, and high ridges, and it has large deposits of sulfur and copper in the northeast.