Global Change

Where has the temperature changed the most?

• central latitude
• central longitude
• north pole
• south pole

Describe the average temperature change from 1880 to 2010.

• increase by 0.8
• increase by 1.0
• increase by 0.6
• increase by 0.4

Why are winter ice layers darker than the summer layers in the ice core?

• the force
• illusion
• salting
• compaction

Why are these error bars smaller near the year 2000 than in the 1890s?

• better graphing technique
• better technology
• Someone made a mistake
• worse methods of collecting data

How does atmospheric carbon dioxide affect global temperature?

• more CO2, lower temperature
• less CO2, lower temperature
• less CO2, higher temperature
• more CO2, higher temperature

What two things can happen when energy from the Sun interacts with the ground?

• absorbed & reflected
• absorbed & refracted
• absorbed & transmitted
• reflected & refracted

Carbon dioxide keeps infrared radiation: 

• on the ground
• in the air

What happens if you remove all of the carbon dioxide from the atmosphere? The temperature:

• decreases
• increases
• stays the same

Carbon dioxide traps heat, causing the temperature to increase. If there is no carbon dioxide, the heat can “escape” Earth’s atmosphere (instead of getting trapped) and the temperature will not rise.

• True
• False

What happens when sunlight hits greenhouse gas molecules?

• quickly cools them, decreasing temperature
• slowly cools them, decreasing tempature
• quickly heats them, increasing temprature
• slowly heats them, increasing temperature