PRACTICE Unit 7 Test

In the Chasing Coral film, researchers believe that the 3^OC drop in water temperature was causing the coral to....

• bleach

• break

• grow

• attract preditors

During our stations lab we looked at many different graphs that displayed evidence that may contribute to climate change. Which of the following did we investigate?

Select all that apply.

• Global Land Temperatures

• Glaciers

• CO₂ Levels

• Global Population

Ice cores are cylinders of ice drilled from glaciers. Select every statement that is true of an Ice Core.

• Ice cores are the same for every glacier.

• Ice cores can be used to find concentration of CO₂ and other gases in years past.

• Ice core layers correspond to years and the length of seasons

• Particles that were in the atmosphere can be identified within an ice core.

This graph shows

• CO2 is increasing but temperature is decreasing
• both temperature and CO2 are increasing
• both CO2 and temperature are decreasing
• CO2 is decreasing but temperature is increasing

This data set shows that

• global temperatures are increasing over time
• global temperatures are descreaing over time
• carbon dioxide is increasing over time
• carbon dioxide is increasing over time

Which statement best fits the graph?

• Sure, there's some variation, but, in general, climate is getting cooler

• On average, the 1980s were cooler than the 1970s, the 1990s were cooler than the 1980s, and the 2000s were cooler than the 1990s

• There is no variation, only shows an increase in temperature

• On average, the 1980s were warmer than the 1970s, the 1990s were warmer than the 1980s, and the 2000s were warmer than the 1990s

Which statement best matches the graph?

• Each year, sea ice in the Arctic grows larger during the winter and melts during the summer

• Seal level has risen by 100 meters since 1960

• Antarctic sea ice is more suceptable to changing climate than Arctic sea ice

• Sea level has risen by almost 100 mm since 1980

What is the anomaly for 1920?

• negative 1 degree F

• positive 1 degree F

Which is true about ice cores?

• All of these
• Ice cores can determine how the environment has changed
• ice cores can help scientists create a record of the local climate for thousands of years
• Ice cores can tell how concentrations of atmospheric gases have changed

Ice cores show that snow falls in winter but in summer, dust accumulates.

• true
• false