If we will base our answer on Hertzsprung diagram, we
will see that mass and luminosity are directly related, which means, long lived
stars begin their lives with more mass and a larger amount of hydrogen fuel,
hence hydrogen is abundant before than now. They are more luminous during their
main sequence lives. Giant stars and supergiant
stars have great masses, so, they have greater luminosities.
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U.S. involvement in the affairs of countries in the Middle East is a long, complicated, and tenuous history. The simple answer is that the United States has been involved in conflicts in the Middle East because of its relationships with countries and governments in that region and more broadly its desire to assert its influence in this vital region of the world that has unfortunately been rife with conflict. During the Cold War the Middle East was very much a battleground between the U.S. and the Soviet Union in the fight for resources, influence, and power. This has continued today as new rivalries and conflicts have developed even without the Soviet Union.
Answer:
This is how the hurricanes are created: In the Northern Hemisphere, winds moving north will move to the east, and winds that are moving south are diverted westward. In the Southern Hemisphere, winds blowing toward the equator will move eastward, and winds traveling in the opposite direction will curve west.
This process results in winds colliding and swirling clockwise in the south, and counterclockwise in the north.
Answer: I think it's B or D. Read the paragraph below. It will probably help you.
Explanation:
Solar flares impact Earth only when they occur on the side of the sun facing Earth. ... Coronal mass ejections, also called CMEs, are large clouds of plasma and magnetic field that erupt from the sun. These clouds can erupt in any direction, and then continue on in that direction, plowing right through the solar wind.
