Earth Science 1a

Which among the layers of the Earth's atmosphere is closest to earth's surface?

• Stratosphere

• Troposphere

• Ionosphere

• Exosphere

Plates of the lithosphere float on the _________.

• crust

• asthenosphere

• core

• atmosphere

Which layer of the Earth best represents the mantle?

• 1

• 2

• 3

• 4

Which among the layers of the Earth is the most dense?

• crust

• mantle

• outer core

• inner core

How far into the Earth must you travel to reach a temperature of 3000°C?

• 1000 km

• 2000 km

• 1700 km

• 3900 km

Which statement best summarizes the table?

• For every 100 m increased in depth, the temperature triples.

• For every 100 m increased in depth, the temperature increases 3°C.

• Four every 3°C increase, the depth is doubled.

• For every 3°C increase, the depth is tripled.

Which of the following statements is true about wind transport?

• Wind, like water, can only move materials downhill.

• Wind and water have the same relative ability to erode materials.

• Wind transport and erosion primarily occur in areas with little vegetative cover.

• Generally, wind can carry particles as large as those transported by moving water.

At a temperature of 400°C, at what point does intermediate metamorphic grade switch to high metamorphic grade?

• 775 MPa

• 475 MPa

• 625 MPa

• 225 MPa

A landslide that occurs on steep slopes in a mountainous area with thick snow is called a(n) __________.

• rockslide

• slump

• avalanche

• mudflow

At which location would a catastrophic mass-movement be most common?

• On a slope of 15° in an area of 120 cm of annual rainfall.

• On a slope of 35° in an area of 72 cm of annual rainfall.

• On a slope of 30° in an area of 110 cm of annual rainfall.

• On a slope of 18° in an area of 88 cm of annual rainfall.