Answer:
The ozone layer is a region of high ozone concentration in the stratosphere, 15 to 35 kilometres above Earth's surface. The ozone layer acts as an invisible shield and protects us from harmful ultraviolet (UV) radiation from the sun.
The section of the Hertzsprung-Russell diagram that has the coolest and the brightest stars are the super-giants.
<h3>What is the Hertzsprung-Russell diagram?</h3>
This is a diagram that is used in the field of astronomy to show the absolute brightness of stars against their temperatures.
The super giant stars occur at the upper right of the diagram. In order to find the super giants on this graph, you have to find them at the top right.
Read more on the Hertzsprung-Russell diagram here:
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Explanation:
it affects las Vegas valley due to the fact that the colorado river that runs south in the lake mead is where Las Vegas get its most precious resources e.g water , without it Las Vegas would not survive very long
Answer:
B) The warm, moist Pacific air rises and cools, releasing precipitation as it moves up the windward side of the range, and this cool, now dry air mass heats up as it descends on the leeward side of the range
Explanation:
The air masses that have formed over the Pacific and move toward the western coast of the United States are warm and moist ones. As they reach the coastline they continue into the mainland, but only to come upon a natural barrier, a north-south mountain range. The warm and moist air starts to move up and starts to cool off, and as it does, condensation occurs, thus the windward side of the mountain range gets a lot of precipitation. The cool, but now dry air continuous its movement across the mountain range, and moves down its leeward side. As it moves down on the leeward side it heats up again, so it becomes a warm and dry air mass. This makes the leeward side very dry, so it is no wonder that it is dominated by desert and semi-desert.
