8.11 A Key Ideas: Natural Events

Multiple Choice

The graph shows changes in carbon dioxide

(CO2) concentrations and surface temperatures

on Earth from the years 1880 to 2000.

Why do carbon dioxide concentrations and

surface temperatures show the relationship seen

in the graph?

• because lower carbon dioxide levels mean more

  heat is retained in Earth's atmosphere

• because higher carbon dioxide levels mean

  more heat is retained in Earth's atmosphere

• because lower carbon dioxide levels mean less

  heat is retained in Earth's atmosphere

• because higher carbon dioxide levels mean less

  heat is retained in Earth's atmosphere

Multiple Choice

What is the main cause of current climate change?

• Human activity

• Solar activity

• Volcanoes

• Oceanic Diffusion

Multiple Choice

What is the role of greenhouse gases in climate change?

• They cool the Earth's surface

• They trap heat in the atmosphere

• They have no effect on climate

• They increase solar radiation

Multiple Choice

What is the role of carbon dioxide (CO2) in the carbon cycle?

• It is a greenhouse gas

• It is a pollutant

• It is a nutrient

• It is a mineral

Multiple Choice

The map shows the location of a volcano. The winds in this area usually blow from west to east. The smoke and ash from a volcano can be blown great distances, and these are harmful to humans. Based on the information given, what is the safest location for humans to build a town?

• A

• B

• C

• D

Multiple Choice

This city was destroyed in 79 A.D. by the eruption of Mt. Vesuvius.

• Rome

• Munich

• Pompeii

• Naples

Multiple Choice

Volcanoes are never destructive

• True

• False

Open Ended

We learned about the North Atlantic Current and its vital role in powering the Gulf Stream which brings warmer temperatures to Western Europe area.

A) How can the melting of glaciers cause the north Atlantic current to lose its power?

B) What would happen if the North Atlantic Current stops?

(Hint: That was the plot of Day After Tomorrow)

Open Ended

Choose one of the following ways to tell the story of a natural event that influences climate and the changes it can cause.

Poll

How confident do you feel about this topic now?

• Very confident
• Somewhat confident
• Not confident