Answer:
supernova
Explanation:
When a high-mass star has no hydrogen left to burn, it expands and becomes a red supergiant. While most stars quietly fade away, the supergiants destroy themselves in a huge explosion, called a supernova. The death of massive stars can trigger the birth of other stars.
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Answer: No unethical experiment can ever have a positive effect on society.
Explanation:
Mount Vaals<span> is a hill 322.7 m in height, the highest point in the Netherlands. It is located in </span>the province<span> of </span>Limburg<span>.</span>
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