A dead star does indeed becomes a black hole. In fact, even the sun will turn into a giant black hole and kill us all. (That's in millions of years, so something else will wipe out the human race)
Hope this helped! :P
Answer:
Global warming is caused by humans adding substantial amounts of greenhouse gases to the atmosphere, causing an increase in the average global temperature.
Explanation:
<span>There are four terms involved: tropical, maritime, polar, and continental. They affect the weather through temperature and humidity.</span><span>For example, polar usually causes cold, dry weather, and the tropical one is more humid and hot.</span><span>Hope this helps! :)</span><span>
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Answer:
Both early protostars and young stars are formed from a clod of gas which collapses under gravity to form a star. Both types of star are mainly Hydrogen and some Helium. They would be 75% Hydrogen, 25% Helium with traces of Lithium. Young stars formed out of the remains of old stars would still be mainly Hydrogen. Another way to say it is Both types of star are mainly Hydrogen and some Helium. Early protostars would have been formed from the gasses that were created soon after the big bang. They would be 75% Hydrogen, 25% Helium with traces of Lithium. Young stars formed out of the remains of old stars would still be mainly Hydrogen.