You are here
The atmosphere is held to the earth by the force of
A. Attraction
B. Deflection
C. Gravity
D. Movement
Answer:
Answer by Student
-lock-
The correct answer is (C) Gravity .
Detailed Explanation by Teachoo
The atmosphere is the layer of gases that surrounds the Earth and protects it from harmful radiation, regulates temperature, and enables life. The atmosphere is held to the Earth by the force of gravity, which is the attraction between two objects with mass.
Let’s check all the options:
-
Option (A) Attraction
- This is a vague term that could mean different things in different contexts. In physics, attraction usually refers to a specific type of force, such as magnetic attraction or electrostatic attraction. These forces are not responsible for holding the atmosphere to the Earth. So, this is
incorrect
.
-
Option (B) Deflection
- This is the act of changing the direction of something that is moving. For example, a ball can be deflected by hitting it with a bat. Deflection is not a force, but a result of a force. Deflection does not hold the atmosphere to the Earth, but it can affect how the atmosphere moves due to other forces, such as wind or pressure. So, this is
incorrect
.
-
Option (C) Gravity
- This is the force that attracts two objects with mass towards each other. The more mass an object has, the stronger its gravity. The Earth has a lot of mass, so it has a strong gravity that pulls everything towards its center, including the atmosphere. Gravity is the main force that holds the atmosphere to the Earth and prevents it from escaping into space. So, this is
correct
.
- Option (D) Movement - This is the act of changing the position or location of something. Movement is not a force, but a result of a force. Movement does not hold the atmosphere to the Earth, but it can affect how the atmosphere changes due to other forces, such as wind or pressure. So, this is incorrect .
Thus, option (C) is correct .
-endlock-
