Human Activities and Global Warming

What is global warming?

• the melting of ice caps and glaciers

• the increasing heat of Earth's asthenosphere

• the increasing temperature of Earth's atmosphere

• the decrease of oxygen level in the Earth's atmosphere

What is greenhouse effect?

• warm atmosphere around Earth caused by trapped sun's radiation

• absorbs and emits radiant energy from the sun

• increased carbon in the Earth's atmosphere

• increasing Earth's temperature

How urbanization affect an area?

• increases biodiversity

• decreases human population

• increase the risk of flooding in an area

• decreases the need of natural resources

Which strategy reduces the amount of carbon dioxide generated by power plants?

• removing sulfur from coal

• stop generating electricity

• capture carbon dioxide emission

• reduce the amount of natural gas in generating energy

How agriculture can negatively impact the environment?

• It releases CO2 into the atmosphere.

• It can increase the amount of flooding.

• Farmers use fertilizers which contaminate rivers and streams.

• Agriculture reduces the amount of oxygen in the atmosphere.

What natural resource is commonly obtained by surface mining?

• oil

• coal

• wood

• natural gas

Why hydrofracking is performed?

• to prevent ground water contamination

• to prevent air pollution in the area of the well

• to increase the flow of natural gas from the well

• to reduce the amount of contaminant in the natural gas

What is the major advantage that alternate energy has over fossil fuels?

• Alternate energy is more efficient than fossil fuels.

• Alternate energy does not produce radioactive waste.

• Alternate energy increases the amount of sulfur dioxide ejected into the atmosphere.

• Alternate energy reduces the amount of carbon dioxide ejected into the atmosphere.

Which of the following types of alternate energy is commonly located near the coast of North Carolina?

• wind energy

• solar energy

• nuclear energy

• geothermal energy

Which risk is associated with oil drilling?

• It extracts radioactive elements which are health risks for workers.

• It removes land from beneath the surface which can cause sinkhole.

• It can lead to an oil spill in the middle of the ocean.

• It removes soil which increases oil erosion.