Answer:
starts form from a accumulation of gas and dust ,which collapses due to gravity and starts to form stars
Note down the formula below

Mass of the compound

Mass % of Hydrogen:-



Mass % of Oxygen:-



Answer:
It's called a theory because it has not been proven yet. so we can not claim it to be a fact without proof.
it cannot be carboxyl..... ethanol cannot be an example of carboxyl
and ethanol is an alcohol ..... so therefore the answer is alcohol
Answer:
an
Explanation:
It is AN because investigation starts with I ( i is a vowel). When there are vowels we use An.
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