World Geography - Unit 3 Review

Volcanic activity and earthquakes are both part of what concept?

• Wind and water currents

• Plate tectonics

• Weathering

• Erosion

Answer explanation

The concept that includes both volcanic activity and earthquakes is Plate Tectonics. This theory explains the movement and interaction of Earth's lithospheric plates. These movements can cause earthquakes and volcanic eruptions. The other options, such as wind and water currents, weathering, and erosion, do not encompass these geological phenomena.

Which of these is a part of the 'physical systems' of geography?

• Erosion

• Assimilation

• Acculturation

• War

Answer explanation

Erosion is a part of the 'physical systems' of geography because it deals with the natural processes that shape the Earth's surface.

David, Aria, and Grace are planning an expedition to a region with a 'tundra' climate. Which of the following characteristics would they expect to find in this region?

• The region receives less than ten inches of precipitation annually.

• The region has permanently frozen subsoil.

• The region is incapable of sustaining animal life.

• The region is incapable of sustaining human life.

As a river reaches its mouth, it is often affected by incoming tides, resulting in a formation called a

• Fjord

• Delta

• Plateau

• Canyon

Answer explanation

The correct answer is Delta. As a river reaches its mouth, the speed of the river decreases, causing it to deposit sediment it was carrying. This deposition of sediment forms a delta.

Which of the following processes is usually responsible for the creation of soil from solid rock?

• Seepage

• Volcanism

• Weathering

• Erosion

Answer explanation

Weathering is the process responsible for the creation of soil from solid rock. It involves the breaking down of rocks into smaller particles through physical, chemical, and biological processes.

The lines on the globe that measure any distance North or South of the Equator are called

• Longitude

• Altitude

• Latitude

• Meridians

Answer explanation

The lines on the globe that measure any distance North or South of the Equator are called Latitude. Latitude lines are a numerical way to measure how far north or south of the equator a place is located. They are not the same as Longitude, Altitude or Meridians, which have different geographical meanings.

Earth's lithosphere contains all of these features EXCEPT

• Troposphere

• Crust

• Upper mantle

• Continental and oceanic plates

Answer explanation

The Earth's lithosphere is the rigid outer part of the earth, consisting of the crust, upper mantle and tectonic plates. However, the troposphere is the lowest layer of Earth's atmosphere which is NOT a part of the Earth's crust.

Many plants and animals adapt in very special ways in order to deal with the cold nights, hot days, and very dry conditions found in African deserts. What region in Africa, home to the ostrich as well as camels, is the largest hot desert in the world?

• The Nubian Desert

• The Sinai Desert

• The Kalahari Desert

• The Sahara Desert

The Earth's seasons are caused by Earth's _______.

• Rotation

• Tilt

• Axis

• Revolution

Answer explanation

The Earth's seasons are caused by the tilt of the Earth's axis. This tilt, combined with the Earth's orbit around the sun, causes different parts of the Earth to receive varying amounts of sunlight throughout the year, leading to the change in seasons.

The Earth's axis is tilted at ______ degrees.

• 18.5

• 21

• 23.5

• 25.3