The process of injecting water, sand, and chemicals under high pressure into rocks to release oil and natural gas is known as

The __________ presides over the House when it is in session and plays a major role in making committee assignments

Fill in the blanks with correct word

Changes in the 1970s weakened the nearly tyrannical powers of American committee chairpersons by __________

A) making it easier to establish subcommittees B) restricting the chairpersons' authority C) establishing specialized "field" committees D) altering their responsibilities to include international affairs