Question

1. Answer the following questions in one word or one
sentence:
1. Define Satellites.
2. Why is Venus considered as the 'Earth's Twin'?
3. What do you understand by the term 'Galaxy'?​

Answer 1

Explanation:

1. A satellite is a moon, planet or machine that orbits a planet or star.

2. Venus and Earth are often called twins because they are similar in size, mass, density, composition and gravity.

3. A galaxy is a collection of stars and planets that are held together by gravity.

Answer 2

Answer:

1. A satellite is a moon, planet or machine that orbits planet or star.

2. Because they are same in size, same mass, and they also have same composition.

3. A galaxy is a collection of stars and planets that are held together by gravity . In a galaxy celestial bodies rotate around a central object. For eg: Our solar system is made up from the sun and the planets that surrounds it , which is also a tiny part of the galaxy..