In a type of local wind called a mountain breeze, wind blows down the slopes of a mountain into a valley. this means that there must be the valley. a. low-pressure air rising from b. high-pressure air rising from c. low-pressure air sinking into d. high-pressure air sinking into

You answer is D

Mountain and Valley Breezes - Geography for Kids - KidsGeo

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In the evening, the mountain slopes cool the surrounding air more quickly than the air found lower in the atmosphere. This creates a high pressure as air becomes more densely packed. The resulting high pressure causes winds to blow down the mountain towards the valley floor.

Both models are effective because they show the valence electrons, and these valence electrons indicate the reactivity of an element.