Answer:
The main sequence stretching from the upper left (hot, luminous stars) to the bottom right (cool, faint stars) dominates the HR diagram. It is here that stars spend about 90% of their lives burning hydrogen into helium in their cores. Main sequence stars have a Morgan-Keenan luminosity class labelled V.
Explanation:
Answer:
<h2>False...................</h2>
A. The data did not support the hypothesis because more people preferred tap water.
Answer:
speed up the rate of virtually all of the chemical reactions that take place within cells.