Deserts and Rainforests

What is a desert?

• A place with a lot of trees and animals
• A place with a lot of water and fish
• A place with a lot of buildings and people
• A place with little rainfall and harsh living conditions

Approximately how much of the Earth's surface is desert?

• 33%
• 25%
• 17%
• 10%

When does most of the rainfall in deserts occur?

• Throughout the year

• During prolonged periods of rain

• During heavy storms that are short-lived

• During the winter season

Most hot deserts are located between which two geographic lines?

• Tropic of Cancer and Tropic of Capricorn
• Equator and Tropic of Cancer
• Tropic of Capricorn and South Pole
• North Pole and Tropic of Cancer

Why do hot deserts experience extreme temperature variations?

• Because of the high humidity
• Because of the lack of vegetation
• Because of the lack of cloud cover and low humidity

• Because of the high altitude

Cold deserts are generally found north of which line?

• Tropic of Cancer
• Equator
• Tropic of Capricorn
• Prime Meridian

What form does most precipitation take in cold deserts?

• Snow
• Rain
• Hail
• Fog

What defines a rainforest landscape?

• Desert plants and sand dunes
• Snowy mountains and glaciers
• High density of trees, high rainfall, and diverse species
• Dry grasslands and sparse trees

Where are tropical rainforests typically located?

• In the polar regions
• In the desert areas
• In the equatorial regions
• In the temperate zones

What factor contributes to the high temperatures in tropical rainforests?

• Cloud cover and high humidity

• Strong winds and low humidity

• Frequent thunderstorms

• Sparse vegetation