Answer:
800 earths
Explanation:
800 earths of water to do it
This movement is called convection. It can be found in liquids, gasses and rheids - solids that can also experience movement ( on a big time scale), such as the earth mantle. One of the types of convection is diffusion: net movement of gasses from higher to lower concentration areas.
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.
<h2>
Answer:</h2>
1. <u>Minerals</u>
2. <u>Geological</u>
3. <u>Indefinitely</u>
4. <u>Pressure</u>
<h2>
Explanation:</h2>
1. The minerals play a wide role in industrial and agricultural developments. In industries, the minerals are used as raw materials at the same time in agriculture, it is helps in growing plant growth as fertilizers and nutrients.
2. The geological activity includes movement of earth plates under the earth's surface which is mainly due to presence of heat deep inside the earth.
3. There are huge amount of minerals in this earth, but everything is need to be used in a very economical way, without wasting.
4. The pressure and temperature is need to favorable to form the minerals.
<span>a. Hot springs would be an example of a landform from magma. </span>
