B. ground is cooling faster than the air.
C. air has high humidity.
D. wind is blowing in the direction of the sound.
It A. Air is cooler than ground. i just took PF test got 100%!!! please rate Brainlyest
1 point
Answer:
For low-mass stars, after the helium has fused into carbon, the core collapses again. As the core collapses, the outer layers of the star are expelled. A planetary nebula is formed by the outer layers. The core remains as a white dwarf and eventually cools to become a black dwarf.
Mount Everest in South Asia is the tallest mountain in the world at 8,848 meters, significantly taller than the United States' tallest mountain, Denali, which is 6,194 meters high. Factors such as gravity and tectonic activity can influence the height mountains can reach.
The tallest mountain in South Asia, Mount Everest, is also the tallest mountain in the world, standing at approximately 8,848 meters above sea level. In contrast, the tallest mountain in the United States is Denali (also known as Mount McKinley), in Alaska, which stands about 6,194 meters above sea level. Therefore, Mount Everest in South Asia is significantly taller than Denali in the United States. It's important to note that various factors such as gravity and tectonic activity can contribute to the heights that mountains can reach. For instance, even though Mars has less surface gravity and unifying plates, its tallest mountain Olympus Mons is more than double the height of Mount Everest or any mountain on Earth for that matter.
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A. all; 70
B. nearly all; 60
C. some; 40
D. five major; 50