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.
Answer:
C. Alabama has six major manufacturing centers
Explanation:
Alabama is not a landlocked state, because it shares it's border with the Gulf of Mexico. Alabama's state capital is in Montgomery, not Tuscaloosa. Most of the population sits on the North half of the state. So the answer would be C. You can count the factories on the map too. Hope this helps friend.
Answer:
The properties of the asthenosphere are:
1. highly viscous
2. mechanically weak
3. ductile region of the upper mantle of the Earth
It is the letter d the peropen was right with it
the area with low pressure will be more dense in the area with high pressure will be less dense
