Lesson 4 Flashcards

1
Q

In the northern hemisphere the day, with the most daylight is called the

A

Summer solstice

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2
Q

In the northern hemisphere, the day, with the least is called

A

Winter solstice

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3
Q

The day on which there are 12 hours of darkness and 12 hours of daylight everywhere on earth is called

A

Equinox

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4
Q

An equinox is the first day of spring is called the usually occurs on March 21

A

Autumal equinox

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5
Q

An equinox that is the first day of autumn in the northern hemisphere is called the

A

Autumnal equinox

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6
Q

The center portion of earth composed, mostly of iron, is called the

A

Core

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7
Q

The outer portion of earth near at the surface that has a low density is called the

A

Crust

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8
Q

The theory that says the earths surface is divided into several large plates of hard rock that floats on top of a plastic layer of rock underneath is called

A

Plate tectonics

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