B. It grows as nuclear fusion in its core produces more matter.
The answer to this question is due to the fact that "the hemisphere of the Sun is tilted towards the Sun during its revolution". This is the reason why during the sun and seasons animation with the selected altitude being 66 1/2 degrees and this is also the reason that the maximum temperature is not as high as at other altitudes.
Mountains have an extremely important role in influencing global and regional climates and weather conditions. They cover around one-quarter of the earth's land surface and are home to 720 million people around the world. Indirectly, billions more living downstream also benefit from mountains.
Mountains provide us with freshwater, energy, food, biodiversity, and medicinal products – resources that may become very rare in the coming decades.