Question

1. Why is earth called the 'blue planet'?
2. What do you know about earth?
3. Write some features of the satellites.
4. Write a short note on 'Solar System'.
ding to their distance fror​

Answer 1

Answer:

1. Planet Earth has been called the "Blue Planet" due to the abundant water on its surface. Here on Earth, we take liquid water for granted; after all, our bodies are mostly made of water.

2. Earth is the third planet from the Sun and the only astronomical object known to harbor life. According to radiometric dating estimation and other evidence, Earth formed over 4.5 billion years ago.

3. Satellites have several unique characteristics which make them particularly useful for remote sensing of the Earth's surface. The path followed by a satellite is referred to as its orbit. Satellite orbits are matched to the capability and objective of the sensor(s) they carry.

4. Distances and scales

The distance from Earth to the Sun is 1 astronomical unit [AU] (150,000,000 km; 93,000,000 mi). ... For example, Venus is approximately 0.33 AU farther out from the Sun than Mercury, whereas Saturn is 4.3 AU out from Jupiter, and Neptune lies 10.5 AU out from Uranus.

Answer 2

Answer:

1) Because about 1/4 part of Earth is covered with water.

2) Earth is only the temperate planet in our Solar System.It is mostly blue in colour. It has only one natural satellite namely moon.Earth is third in the position in our Solar system.

3) Satellites helps us to telecast the programs that we watch.Satellites have several unique characteristics which make them particularly useful for remote sensing of the Earth's surface. The path followed by a satellite is referred to as its orbit. Satellite orbits are matched to the capability and objective of the sensor(s) they carry.

4)The Solar System is made up of the Sun and all the objects that orbit around it. The Sun is orbited by planets, asteroids, comets and other things. ... There are eight planets in the Solar System. From closest to farthest from the Sun, they are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.