Resources 2

A disadvantage when the extraction of water from aquifers is not regulated is:

• Increased groundwater recharge

• Depletion of groundwater resources

• Improved water quality

• Stabilization of water tables

Runoff pollution that pollutes our streams and rivers comes from:

• Factories only

• Natural springs only

• Rainwater flowing over land surfaces

• Underground water sources

Virginia produces which 2 of the following sources of energy:

• Solar and Wind

• Coal and Natural gas

• Hydroelectric and Geothermal

• Oil and Natural Gas

Coalbed methane is a natural gas that comes from:

• coal seams

• oil reservoirs

• volcanic rocks

• sedimentary basins

Sedimentary rocks frequently quarried in Virginia for various construction applications, including crushed stone, are:

• Granite

• Limestone

• Marble

• Basalt

Fossil fuels are ​ (a)   in human timescale, create ​ (b)   when burned, and may cause ​ (c)   , but are relatively ​ (d)   and easy to use once they are extracted.

• They are renewable

• They are unlimited

• They are inexpensive

• nonrenewable
• carbon dioxide
• cheap
• pollution

Hydraulic fracturing, or "​ (a)   ," is a technique used to extract oil and ​ (b)   from deep, low-permeability rock formations, such as ​ (c)   . It involves injecting a mixture of ​ (d)   , and chemicals into a well, creating ​ (e)   in the rock to release trapped hydrocarbons.

• fracking
• natural gas
• shale
• cracks
• water and sand

An advantage of Hydraulic fracturing “fracking” is:

• It increases the extraction of oil and natural gas

• It reduces water usage in drilling

• It eliminates all environmental risks

• It is the cheapest energy source

A disadvantage of Hydraulic fracturing “fracking” is:

• Increased renewable energy production

• Reduced water usage

• Potential groundwater contamination

• Lower greenhouse gas emissions

​ (a)   is used as a biomass energy source primarily to produce ​ (b)   , a biofuel.

For energy Ethanol is used primarily as a ​ (c)   additive and a ​ (d)   alternative to gasoline.

• Corn
• ethanol
• fuel
• cleaner