Chapter 35- Antarctica and Global Warming

Antarctica is known for

• being the coldest continent on Earth.
• having no form of plant or animal life.
• being the same temperature year-round.
• all of the above

What do many scientists believe relates to global warming?

• Earth's solar energy
• a lot of precipitation
• the increase in snow
• the greenhouse effect

Researchers go to Antarctica to study global warming. Global warming is

• the entrapment of Earth's gas by the atmosphere.
• the pattern of weather over a long period of time.
• a slow increase in Earth's surface temperature.
• a layer of carbon dioxide that surrounds Earth.

Why does Antarctica get so cold?

• Its icebergs prevent it from getting very warm.
• It is the farthest continent from the equator.
• The sun rises extremely high above the horizon.
• It receives a large amounts of rain every year.

A large ecosystem such as a forest or wetland is called

•  an ice shelf.
•  a glacier
• a biome.
• a census.

Which of the following is a theory on global warming?

• Earth's climate is getting warmer.
• It is caused by human activity.
• It is harmful to people and biomes.
• all of the above

Seven countries that claimed Antarctica signed the Antarctic Treaty in 1959. This treaty made it so Antarctica was

• A. divided equally among the nations.
  
• B. used only for natural resources.
  
• C. owned by the China and England.
  
• D. reserved for peaceful activities.
  

What happens to Antarctica's small amount of solar energy?

• A. It disperses into the atmosphere.
  
• B. It is reflected back into space.
  
• C. It travels through its ecosystem.
  
• D. It is absorbed by its glaciers.
  

What is the name of the natural process that keeps Earth warm?

• A. the greenhouse effect
  
• B. the solar energy effect
  
• C. the precipitation process
  
• D. the ecosystem process
  

Scientists who support the global warming theory use ______ as their evidence.

• A. glacier records
  
• B. climate records
  
• C. greenhouse gas levels
  
• D. all of the above