Chapter 35: "Antarctica: Researching Climate Change at the Coldest Place on Earth"
Which of the following is true about Antarctica?
- Air temperatures are rising in some areas. - Air temperatures are falling in some areas. - Certain species of penguins are increasing. **ALL OF THE ABOVE**
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*
Scientists who support the global warming theory use ______ as their evidence.
- glacier records - climate records - greenhouse gas levels *ALL OF THE ABOVE*
What can scientists learn from drilling into glaciers in Antarctica?
Antartica's climate each year
What happens to Antarctica's small amount of solar energy?
It is reflected back into space.
Why does Antarctica get so cold?
It is the farthest continent from the equator.
When researchers count the number of penguins in a certain location, it is called
a census
Researchers go to Antarctica to study global warming. Global warming is
a slow increase in Earth's surface temperature.
Antarctica is known for
being the coldest continent on Earth.
The levels of greenhouse gases in the atmosphere are rising due mostly to people
burning fossil fuels
Scientists who support the global warming theory believe that
common crop failures could lead to hunger.
What do ice shelves form when their edges break off?
icebergs
Who will be most affected by rising sea levels?
low and flat countries
Some scientists who doubt the global warming theory argue that Earth is warming due to
natural causes
Scientists who doubt the global warming theory argue that increasing surface temperatures come from
only cities and urban areas.
Seven countries that claimed Antarctica signed the Antarctic Treaty in 1959. This treaty made it so Antarctica was
reserved for peaceful activities.
Global warming could affect the Adelie penguins because an increase in snowfall would
ruin the bare spots they need for nesting.
What do many scientists believe relates to global warming?
the greenhouse effect
What is the name of the natural process that keeps Earth warm?
the greenhouse effect