Answer:
The main public concern regarding the ozone hole has been the effects of increased surface UV radiation on human health. ... Ozone depletion would magnify all of the effects of UV on human health, both positive (including production of vitamin D) and negative (including sunburn, skin cancer, and cataracts).
Colliding boundaries are convergent so the boundary would be convergent.
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The primary cause of change in regional metamorphism is pressure. Usually rocks subjected to high pressures at considerable depth within the earth's crust will exhibit regional metamorphism like the widespread phyllites, schists, gneisses and migmatites of the Canadian Precambrian Shield for example. A phyllite is the next higher metamorphic stage than a slate, a schist is a further stage and gneiss and migmatites are of the highest grade of regional metamorphism. On the other hand, contact metamorphism usually depends more on the effect of heat from an igneous intrusion say converting a limestone to a marble (more coarse grained than limestone usually).
<span> Valleys are one of the most common </span>land forms<span> on the surface of the planet. They are carved by flowing water or flowing ice slowly completing their sculpture new-born lakes at their feet, blue and green, free or encumbered with drifting icebergs </span>like<span> miniature Arctic </span>Oceans<span>, shining</span>
Answer: I think that the answer is, has a circular orbit