The Columbia River Basalts erupted in eastern Washington, western Idaho, and northeastern Oregon between 17 and 14 million years ago.  They are an example of:

Lahars are:

Increasing the amount of carbon dioxide in the atmosphere has the effect of making the ocean __________.

In magma, __________ is the most abundant dissolved gas.

Several geologic phenomena are being studied as signs of an impending volcanic eruption. These include seismic waves, ______________, and the release of gases.

We know that variations in Earth’s orbit, solar output, and other factors cause changes in the climate. If we removed the human impacts of greenhouse gas emissions, what might the climate be doing today, on its own?

Knowing what you know about the Pacific Plate, magma generation and the creation of volcanoes, what type of volcano is Mount Fuji in Japan?

Multiple Choice: Read each question carefully and select the best possible answer.

Short-term climate cycles with periods of about 100,000 years during the last 2 million years are probably caused by ________________.

Look at the Keeling Curve. Knowing that carbon dioxide is a greenhouse gas, what should happen to the overall temperature of the atmosphere based on the behavior of the graph?