Earth Science (Week 2)

Which of the following is the correct term for a large crack in ice:

• w) crevice

• x) chasm

• y) canyon

• z) crevasse (PRONOUNCE: crah-VAHSS)

Which of the following is present only where benthic organisms reside:

• w) phytoplankton

• x) zooplankton

• y) diatoms

• z) deep sea vents

What is the name of the rapid rise of coastal water that accompanies the arrival of a cyclone?

Magma that reached the Earth’s surface is called what?

Each day, most coastal beaches encounter:

• W) one high tide and one low tide

• X) two high tides and one low tide

• Y) two high tides and two low tides

• Z) three high tides and three low tides

Which of the following is a metamorphic rock:

• W) sandstone

• X) granite

• Y) quartz

• Z) marble

By our current estimations, the Earth is approximately how many billions of years old:

• W) 8.4

• X) 6.2

• Y) 4.6

• Z) 2.4

The Earth's mantle is approximately how many miles thick:

• W) 1000

• X) 1200

• Y) 1500

• Z) 1800

A flat-topped plateau bordered on all sides by cliffs is called a:

• W) hillock

• X) butte

• Y) drumlin

• Z) karst

The Tropic of Cancer lies at which of the following latitudes:

• W) 23 ½° North

• X) 23 ½° South

• Y) 26 ½° North

• Z) 26 ½° South