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One yard is __________a meter.

A naturally occurring, crystalline, inorganic element or compound that possesses a fairly definite chemical composition and a distinctive set of physical properties is a __________.

A form of precipitation that results from convection cycles in clouds is

The Holocene epoch began when

A fault is a large fracture in the Earth’s crust where the rock on one side of the fracture has moved relative to the rock on the other side. California’s San Andreas fault is thought to be the result of movement along a transform boundary of two plates __________.

The sky is blue because the atmosphere __________ sunlight more for blue wavelengths.

Molten rock material beneath Earth’s surface is called

The interrelationship among the processes that produce the three classes of rock is referred to as

The layer of the atmosphere containing most of the mass of the atmosphere and all of the clouds and water vapor is called the

Rocks formed from the cooling of molten materials are classified as