Answer:
While self-gravity pulls the star inward and tries to make it collapse, thermal pressure (heat created by fusion) pushes outward. These two forces cancel each other out in a main sequence star, thus making it stable.
Explanation:
Answer:
Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.
Explanation:
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2.1 x 102
Is the correct solution for this problem
It is important that a football defender should have a lot of mass because of Defenders are aggressive .
- They aren't afraid to make strong tackles and use their body.
- They attack balls with their heads and get in front of shots.
- Play so aggressive that players are scared to receive the ball.
• The role of the first defender is further broken down into four steps :- Approach , Delay , Control and Tackle ..
<h3>Hope this helps you :) ..</h3>