Question

1. Answer the following questions briefly:
1. Why does the Earth have optimum temperature conditions?
2. Mention any three unique features of the Earth.
3. State how the atmosphere around the Earth is different from those around the other planets.
4. State the significance of the atmosphere.
5. Describe the role of water in making the Earth a unique planet.
6. State the importance of lithosphere.
7. Name any three factors which have made life possible on the Earth.
8. Why is the shape of the Earth called an Oblate Spheroid?
9. State any three evidences to prove the spherical shape of the Earth.​

Answer 1

1. the earth has a optimum temperature conditions because of its ideal distance from the sun. It is neither too far nor too close to the sun
2. 1. Extensive continental structure. 2. oxygen rich atmosphere. 3. The earth is watery planet with 70% of the Earth's surface covered by water.
3. Our atmosphere is about 78% nitrogen and 21% oxygen, with traces of other things like water and carbon dioxide. It’s an odd mix compared to the atmospheres of other planets. Jupiter and Saturn are dominated by hydrogen and helium, The thick atmosphere of Venus is about 96% carbon dioxide, and only 3% nitrogen, which is about the same ratio as the thin atmosphere of Mars.
4. The importance of the atmosphere is as follows: The atmosphere protects the Earth from the solar radiation. It filters the harmful ultraviolet rays of the Sun. The atmosphere traps the required heat of the Sun and allows the rest to escape into space, thus maintaining a moderate temperature on the Earth.
5. Water — 70% of the earth's surface is covered by water. - role : It is responsible for moderating the climate and surface conditions of the earth. Water from seas, rivers, and lakes evaporates into the atmosphere where it condenses and falls back as precipitation.
6. The lithosphere is largely important because it is the area that the biosphere inhabit and live upon. When the biosphere interacts with the lithosphere, organic compounds can become buried in the crust, and dug up as oil, coal or natural gas that we can use for fuels.
7. Distance of the Earth from the Sun. Importance of light on the Earth. Importance of Earth's Atmosphere. Water.
8. The rotation of the earth causes the earth to swell more at the equator, compared to at the poles. When the earth rotates, there is a strong outward force on the earth matter near the equator. This force causes the swelling, and gives the earth the oblate spheroid shape.
9. Idk