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Sandstone strata and a mass of granite are observed to be in contact. Which of the following statements is correct geologically?

Assume that you have just examined several flat-lying sedimentary layers. After much study you determine that there is a considerable span of time for which no sedimentary rock layer exists at this site. You have just discovered a(n) ________.

A sandbar that completely crosses a bay, sealing it off from the open ocean is a ________.

________ is(are) 20 times more effective than carbon dioxide at absorbing infrared radiation emitted by Earth.

Water flowing back down the beach after a wave has broken is known as ________.

Intermittent streams are also called ________.

Which one of the following is the one best measure of the wetness or dryness of a region?

Assume that you have just examined several flat-lying sedimentary layers. After much study you determine that there is a considerable span of time for which no sedimentary rock layer exists at this site. You have just discovered a(n) ________.

A feldspar-rich sandstone is called an arkose.

An intermittent lake on the floor of a desert valley is called a(n) ________.