Answer:
A star can live for billions of years: Option A.
Explanation:
The given excerpt clearly indicates that a star can run out of hydrogen and energy only after millions or billions of years. Only then it collapses to a little ball with gravity. This means it would live till those millions or billions of years.
'Black hole' is a region in the space which has such strong gravitational force that it pulls every object that passes through it. Albert Einstein predicted that black star would exist if a dead star also had enough gravity. Hence, "option A" is the correct one.
Answer:
b the same when reflected over line
b
Answer:
A best friend is a person who is very understanding.
<em>A best friend must be the closest and most</em> <em>important person in our life. A best friend is</em> <em>someone whom we share all most of important</em> <em>things and curicul things. Best friends support</em> <em>each other in every they do. We can also say</em> <em>that best friend is our second family too.</em>
Important financial planning skills are important because we can never avoid the inevitable emergency cases. This also allows the money to grow through different investment schemes. They are important because of the security that they offer.