Exam 23: Global Change in the Earth System

In the last few decades,global warming has been most strongly affecting climate and wildlife of ________ regions.

Which of the following processes releases carbon dioxide into the atmosphere?

Based on the graph below,global temperatures were the coldest ________ years ago.

The late heavy bombardment was an example of a__________ change.

Changes that occur ________ are called ________ changes.

Which process removes carbon dioxide from the atmosphere?

A massive flood would be an example of a _________ change.

How are pollen species used to interpret ancient environments?

Which of the following best describes the Earth's climate history?

Sedimentary sequences,which are bounded by unconformities,record global sea level rise and fall with variations in ________.

In the figure below,why is there a seasonal variation in carbon dioxide (CO₂)concentrations?

Which of the following best explains how the carbon cycle plays a role in climate change?

How are carbon dioxide (CO₂)levels in the atmosphere affected by tectonic uplift of rocks and their resultant chemical weathering?

The greenhouse effect is caused by ________.

The reliable paleoclimate record from the Antarctic and Greenland ice cores provides information back to approximately ________ years ago.

Short-term cycles of sea level rise and fall often create sedimentary sequences with sandstone at the base,grading up into coal.These cycles are called ________.

Some researchers have started informally using the term Anthropocene.What is this in reference to? How is this related to the sixth extinction?

Discuss three lines of evidence that global climate change is currently taking place.

A runaway greenhouse effect is an example of ________.

Which of the following represents a unidirectional change in the nature of the Earth?