One does this by the forcible compression of the crust; another, by the expansive power of internal heat; another, by the generation of various gases through galvanic action.
A volcano is an opening made in the earth's crust by internal heat, which has forced melted or heated matter through the vent.
It would be still more presumptuous to take for granted that the more deep-seated effects of subterranean heat surpassed at remote eras the corresponding effects of internal heat in our own times.
Every test we can apply shows us the existence of internal heat.
So far as a human life or the life of the human race is concerned, the decline of a tenth of a degree per century in the earth's internal heat is absolutely void of significance.
I speak not now, of course, of mere solar heat--of the heat which gives us the vicissitudes of seasons; I am only referring to the original hoard of internal heat which is gradually waning.
The Action of Internal Heat in producing Volcanoes.
The last point which we shall consider in connection with the effect of the earth's interior upon climate is internal heat.
The emission of internal heat, however, had probably ceased to be of much climatic significance near the beginning of the geological record, for in southern Canada glaciation occurred very early in the Proterozoic era.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "internal heat" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
