Question

5 Answer the following questions.
a. Why is life possible on earth and not on other planets?
b. What are the two movements of the earth?
c. How are day and night caused?
d. What is an orbit?
e. Why is the earth's revolution important for us?​

Answer 1

Answer:

a. because there is oxygen and atmosphere that can support life.

b. rotation and revolution are the two movement of the earth.

Answer 2

Answer:

5.

a.Earth is the only inner planet in our solar system that has liquid water on its surface. Seventy percent of the surface is covered by oceans where photosynthesis takes place. This makes the ocean the principal life habitat on Earth.

b. Two movements of the earth are Rotation and Revolution.

c. Day and night are due to the Earth rotating on its axis, not its orbiting around the sun. The term 'one day' is determined by the time the Earth takes to rotate once on its axis and includes both day time and night time.

d. An orbit is a regular, repeating path that one object takes around another object or center of gravity. Orbiting objects, which are called satellites, include planets, moons, asteroids, and manmade devices

e. The revolution of the Earth on its axis is important in setting up the seasons.