Earth Science 2

Most scientists suggest an increase in the greenhouse gases entering Earth’s atmosphere causes

• a decrease in sea level

• a decrease in average surface temperatures

• an increase in melting of polar ice caps

• an increase in crustal plate movement

Which weather condition is measured by this instrument?

• air humidity

• air pressure

• wind direction

• wind speed

Earth’s hydrosphere is best described as the

• relatively thin layer of rock found above Earth’s mantle

• relatively thin layer of water covering most of Earth’s crust

• hot liquid rock located in Earth’s outer core

• very dense rock located in Earth’s inner core

Which motion do the arrows in the diagram represent?

• Earth’s rotation

• Earth’s revolution

• the Sun’s rotation

• the Sun’s revolution

The sequence shows the steps involved in the formation of

• an element

• a fault

• an igneous rock

• a fossil

Which rock layer contains the oldest fossil?

• A

• B

• C

• D

Which layer contains the youngest fossil?C

• A

• B

• C

• D

Which material is primarily a mixture of weathered rock and organic matter?

• minerals

• ocean water

• soil

• seashell

The arrows in the diagram below show the circulation of air on a sunny day.

The air circulation shown is caused by

• both hot air and cool air sinking

• both hot air and cool air rising

• hot air sinking and cool air rising

• hot air rising and cool air sinking

The average daily air temperature at a certain location increases when there is a seasonal increase in the number of daylight hours.

Which graph best shows this change?

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