Which of the following individuals presides over the House of Representatives and has the important role of assigning members to committees?

This term refers to the political authority held by individual citizens of the United States which, when transferred to the government, empowers the government to act on behalf of the citizens.

All the following represent a direct, effective check that is designed to slow down Congressional action EXCEPT: 

Rocks are comprised of inorganic substances called _______.

Marble is a good example of what type of rock?

Which is the largest of the four soil types?

________ is defined as the public and private works that allow human communities to strive.

_________ is having the potential to cause cancer in humans.

________ is the depth described at which the soil is completely saturated with water.

________ is the unweathered rock formation underlying the surface soils.