Ch.2 Sec. 1 Geography

Question 1

Upper and lower mantle

Answer 1

Consists of molten rock called Magma

1800 miles thick

Question 2

Outer core

Answer 2

Made of molten, iron, nickel

1400 miles thick

Question 3

Inner core

Answer 3

2000 degrees Fahrenheit
Made of iron
Solid bc of pressure
700 miles thick

Question 4

Tectonic plates

Answer 4

The sections of earths crust

Question 5

Continental drift

Answer 5

The slow movement of the continents

Question 6

Mountain

Answer 6

A high steep elevation

Question 7

Hill

Answer 7

Slopes upward but less steep and rigid than a mountain

Question 8

Plain

Answer 8

A level area

Question 9

Plateau

Answer 9

A plain that sits high above sea level and usually has a cliff on all sides

Question 10

Continental shelf

Answer 10

The edge of a continent often extends out under the water

Question 11

Continental rise

Answer 11

Beyond the slope, before the ocean floor where the land slopes slightly upward

Question 12

Valley

Answer 12

Low-lying area that is surrounded by mountains

Question 13

Crust

Answer 13

Outer part of the earth
About 30 miles thick
Solid

Question 14

Large bodies of salt water

Answer 14

Oceans

Question 15

Smaller bodies of salt water

Answer 15

Seas

Question 16

The process by which rocks and soil slowly break apart and are swept away

Answer 16

Erosion

Question 17

Process where the sun heats the ocean and water vapor rises into the atmosphere

Answer 17

Evaporation

Question 18

Large body of water that is surrounded by land

Answer 18

Lake

Question 19

Process of water droplets falling back to the earth

Answer 19

Precipitation

Question 20

When air water wind or ice slowly where away rocks and soil

Answer 20

Weathering

Question 21

A mountain that erupts in an explosion of molten rock gases and ashes

Answer 21

Volcano

Question 22

Continuously moving flows of water that circulate through the oceans and affect climate

Answer 22

Currents

Question 23

The beginning of spring and autumn

Answer 23

Equinox

Question 24

Earth’s tilt creates these

Answer 24

Seasons

Question 25

Large powerful ocean waves that can cause great distruction along the coast

Answer 25

Tsunamis

Question 26

A circle of volcanoes and earthquakes along the rim of the Pacific ocean

Answer 26

Ring of fire

Question 27

Finally shaking of the earths crust

Answer 27

Earthquake

Question 28

Process were cooler temperatures and atmosphere cause water vapor to turn into clouds

Answer 28

Condensation

Question 29

The exact moment in which summer and winter start

Answer 29

Solstice

Question 30

Process where precipitation soaks into ground and runs into rivers and eventually the ocean

Answer 30

Runoff

Question 31

Path of water that flows from a higher elevation to a lower elevation

Answer 31

River

Question 32

A dense oceanic plate dives under a less dense continental plate often forms volcanoes

Answer 32

Subduction

Question 33

As the oceanic plates spread apart magma pushes up, creates mountains and an expanding ocean floor

Answer 33

Divergence

Question 34

Two continental plates collide and are pushed upward, causes steep mountain ranges

Answer 34

Convergence

Question 35

Two plates slide past each other causing a crack or fall in the crust, causes earthquakes

Answer 35

Transform

Question 36

Scientists progress

Answer 36

They have come along way in predicting when earthquakes volcanoes etc. are going to come, make progress and how to prepare places for natural disasters

Question 37

What is essential to life on earth

Answer 37

Water

Question 38

What contains salt and other minerals and is the world’s major source of seafood supply and transportation

Answer 38

Salt water, ocean and sea

Question 39

What is the solar system formed of

Answer 39

The sun and the earth and seven other planets

Question 40

How many miles per hour does the earth revolves around the sun at

Answer 40

67000

Question 41

Axis

Answer 41

Earth rotates on its axis, and imaginary line that runs from north pole to the South Pole

Question 42

What degree does earth tilt at

Answer 42

23.5°