1. Star A is composed of 60% hydrogen and Star B has 54% hydrogen. Which star is Older? Use scientific evidence to support your claim.

Star B is older.

Explanation:

Because the interstellar medium is 97% hydrogen and 3% helium, with trace amounts of dust, etc., a star primarily burns hydrogen during its lifetime. A medium-size star will live in the hydrogen phase, called the main sequence phase, for about 50 million years. Once hydrogen fuel is gone, the star has entered “old age.”

baltic states. baltic states, northeastern region of europe containing the countries of estonia, latvia, and lithuania, on the eastern shores of the baltic sea.

explanation:

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