Exam 7: Ecosystems and Habitat

The "Tragedy of the Commons" was originally an article written by Garrett Hardin to describe aquifer depletion.

Virtual water is the quantity of water embedded in the production of food or products.

An aquifer is a large deposit of groundwater.

Rain gardens are usually barrels placed under downspouts.

Scientists in the IPCC conduct original research and report their findings in periodic assessment reports.

Climate is changing more rapidly in the Arctic than in other regions of the globe.

The Ogallala is

The average global temperature is warmer than it has ever been in Earth's history.

Graywater is water from sinks, tubs, and toilets.

Hydroelectric dams can result in the emission of methane, a greenhouse gas.

Most stormwater features such as bioswales, rain gardens, or porous paving have two goals: cleansing and infiltration.

Impervious surfaces help to keep pollutants out of groundwater.

A rainwater cistern is always made of black polyethylene.

A vegetarian diet has a relatively high virtual water content.

Most freshwater on the planet is frozen.

Deforestation of mountain slopes can provide a permanent increase in the amount of water available for irrigation as more snowmelt flows into reservoirs.

Groundwater is

The thinning of the ozone layer will help reduce global warming.

Copper roofs provide the best surface for rainwater harvesting.

Desalination of seawater consumes more energy than pumping of groundwater.