What is the source of all energy on Earth?
•the wind
•Earth’s coal
•the sun
•Earth’s oxygen
the sun
What causes earthquakes and volcanoes?
plate movement
What percentage of Earth’s water is salt water?
97%
Which process works with weathering to change Earth’s surface?
erosion
Which is the correct order of Earth’s layers from its surface to its center?
crust, mantle, outer core, inner core
What does elevation describe?
how far above sea level a landform or location is
By which process is liquid water turned into water vapor?
Evaporation
What causes the seasons to change on Earth?
•the North and South Poles
•Earth’s distance from the sun
•the wind currents
•Earth’s tilt as it revolves around the sun
Earth’s tilt as it revolves around the sun
Why do high mountain climates have variable conditions?
•The sun’s rays are less direct in high mountain climates.
•One side of the mountains is always shielded from the sun and the winds.
•The atmosphere warms with increasing elevation.
•The atmosphere cools with increasing elevation.
The atmosphere cools with increasing elevation.
How long does it take plates to move enough to create landforms?
millions of years
Which mountain range is under water?
A.Mount Everest
B.Mid-Atlantic Ridge
C.Mariana Trench
D.Blue Ridge Mountain
Mid-Atlantic Ridge
How many layers make up the inside of Earth? (Count each distinct part)
Four
What is it called when day and night in both hemispheres are of equal length?
•equinox
•axis
•winter solstice
•summer solstice
equinox
Which natural force has caused the Appalachian Mountains to become rounded and crumbled after millions of years?
A.weathering
B.gravity
C.Earth’s rotation
D.lightning strikes
weathering
What is the name for a long, narrow, steep-sided cut in the ground or on the ocean floor?
A.a continental shelf
B.a ridge
C.the Continental Divide
D.a trench
a trench
What is the correct term for Earth’s completion of one full trip around the sun?
•revolution
•orbit
•circle
•axis
revolution
Which scientist invented a system that divides Earth into climate zones?
•Albert Einstein
•Wladimir Köppen
•Boris Karloff
•Sir Isaac Newton
Wladimir Köppen
Which of the following statements describes one effect of deforestation?
A.The atmosphere is enriched with more oxygen.
B.Forests can be fully restored within just a few years.
C.Natural habitats for animals can be easily found elsewhere.
D.Landslides and erosion occur on deforested lands.
Landslides and erosion occur on deforested lands.
How do the chemicals used to treat lawns affect the water supply?
A.The chemicals run off and pollute the water supply.
B.The chemicals help purify the water supply.
C.The chemicals have no effect on the water supply.
D.The chemicals add beneficial minerals to the water supply.
The chemicals run off and pollute the water supply.
Which term describes the increase in the average temperature of Earth’s atmosphere?
•climate zones
•global warming
•climate warming
•global change
global warming