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The shape of a delta is primarily determined by ________.

In the figure below, which letters represent the crest and trough?

Saline ocean water is ________ dense than fresh water and provides ________ buoyancy to objects floating in it.

The primary stream fed by tributaries within a dendritic drainage network is termed a ________ stream.

The Wadati-Benioff zone extends down within the mantle to a maximum depth of ________.

Evidence of paleomagnetism can be found in ________.

In the heliocentric model ________.

Wegener’s idea of continental drift was rejected by American geologists because ________.

According to the Big Bang theory, our Universe is ________.

By far the most common elements in the Universe and in our Solar System are ________.