By elevation of the atmosphere
Answer:
d). It is easier to make a large reflecting telescope than a large refracting telescope.
f). A reflector can collect more light than a refractor.
Explanation:
A telescope is a device that is used to observe distant objects by the use of lenses and mirrors. It is also used to observe different distant objects by their reflection, absorption, emission or the reflection of the electromagnetic radiations.
Most of the professional telescopes are reflectors because :
1. The reflected telescope is able to receive more of the light when it reflects all the light falling on surface. And it is easier for making a large telescope rather then making large lenses for the refracting telescope. So it is easier to make large reflecting telescope than a large refracting telescope.
2. A reflected telescope receives all the wavelength of the light and it reflects all the light falling on the surfaces where it is refracted telescope that contains lenses cannot absorbs all the light and causes the chromatic aberration.
D. Density
The bulk density of a planet will reflect the relative amounts of the materials the world is made of, regardless of what materials occur at the surface.
C is the answer for this question
Bering Strait is between North America (Alaska) and Asia - not South America.
The correct asnwer is: Central America: this includes such countries as Costa Rica, Nicaragua and Panama, together with the Panama Canal which allows ships to cross from the Atlantic to the Pacific. hope this helps
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
