Physical Geography

What is the source of all energy on Earth?

• The Sun
• Ocean currents
• Volcanic activity
• The Moon

What is it called when day and night in both hemispheres are of equal length?

• Equinox
• Solstice
• Equator
• Zenith

What causes the seasons to change on Earth?

• Changes in ocean currents.
• The rotation of the Earth on its axis.
• The distance from the Earth to the Moon.
• The tilt of the Earth's axis and its orbit around the Sun.

What percent of Earth’s surface is water?

• 50%
• 85%
• 30%
• 75%

What percentage of Earth’s water is salt water?

• 90%
• 75%
• 97%

• 50%

By which process is liquid water turned into water vapor?                            

• Evaporation
• Condensation
• Freezing
• Sublimation

What causes earthquakes and volcanoes?

• Earthquakes are caused by human activities like mining.
• Volcanoes are caused by earthquakes occurring underground.
• Earthquakes are caused by heavy rainfall.
• Earthquakes are caused by tectonic plate movements; volcanoes are caused by magma escaping to the surface.

A flat area at a high elevation is called a __________________

• hill
• valley
• mountain
• plateau

The thick, rocky layer around Earth’s core is the

• crust
• mantle
• outer core
• inner core

Day and night are caused by

• the tilt of the Earth
• the gravitational pull of the Sun
• the orbit of the Moon
• the rotation of the Earth on its axis