The Hoover Dam is not a megadam.

Which of the following is not an advantage of the Aswan High Dam in Egypt?

All of the following are "costs"of the Aswan High Dam, except:

By the time it is completed the Grand Ethiopian Renaissance Dam will cost approximately:

The GERD in Ethiopia is located close to its border with:

The country most concerned about the construction of the GERD is:

Flood-plain embankments may result in a variety of negative consequences for a river and its associated basin.

Water supply, water quality, river channels and flood control are all components of:

Less than half the goods and services consumed in the United States are produced with water from the Mississippi drainage basin.

In the USA, the Mississippi drainage basin produces _____ worth of agricultural products and _____ of the country's farm exports.

Which of the following are considered threats to the Mississippi river and its tributaries (check ALL that apply)?

AGWI stands for:

Which of the following are areas of concern measured by the AGWI Report Card (check ALL that apply)?

High nutrient run-off from agriculture and industry is a major cause of hyperoxia in fish in the Gulf of Mexico.

The threat from flooding increases dramatically when communities and businesses are located on flood plains.

The Mississippi river carries over _____ of the USA's grain production for global consumption.

Water from the Mississippi River's drainage basin provides approximately _____ of the USA's hydroelectric power.

Louisiana's wetlands account for 40% of all the USA's wetlands, but 80% of the lost wetlands.

Up to 50km² of Louisiana's wetlands are lost annually.

The construction of dams and the raising of levees on the Mississippi have increased the amount of sediment that reaches the coastal wetlands.

Lands with soils that are permanently flooded.

Wetlands make up _____ of the Earth's surface.

Which of the following types of wetland is the most common?

Which of the following types of wetland is the least common?

It is estimated that in 1900 there was _____ as much wetland as there was in 2000.

Which of the following are benefits of wetlands (check ALL that apply)?

Which of the following is not a main function of wetlands?

Wetlands are very diverse and characterized by a large number of ecological niches.

This treaty laid the foundation for international cooperation in conserving wetlands.

Which of the following is not a requirement of members of the Ramsar Convention?

The Ramsar list contains more than _____ sites, covering more than _____ hectares of wetland habitat.

To be considered a wetland of international importance, a site must support a significant population of waterfowl or threatened species.

To be considered a wetland of international importance, a site must be an example of a rare type of wetland.

Human use of a wetland so that it may yield the greatest continuous benefit to present generations while maintaining its potential to meet the needs of future generations.

Direct use values, indirect use values, option values and intrinsic values are all components of the _____ of wetlands.

When assessing a wetland's TEV, fish, fuel wood and services are examples of:

When assessing a wetland's TEV, flood control and storm protection by mangroves are examples of:

When assessing a wetland's TEV, these are potential values that could be discovered in the future.

When assessing a wetland's TEV, the value of the wetland in "it's own right" is known as:

Wetlands are one of the least productive ecosystems in the world.

In terms of ecological services provided by different ecosystems, wetlands are _____ more valuable than tropical rainforests.

Which of the following is the main cause of wetland loss?

Which of the following human actions cause the greatest loss to wetlands?

According to WaterAid there are approximately _____ people without access to safe water.

Nearly half the people who gained access to water between 1990 and 2008 live in China.

Which saves more water?

The subsidization of water can lead to the decline of aquifers and other water sources.

This type of new technology removes microbes, bacteria and other matter by using silver ions that destroy contaminants.

This type of new technology enables water to be filtered and purified.

In Singapore, this involves imitating the biological processes by which mangrove plants extract seawater using minimal energy.

This technology helps companies ensure the quality of their water supply networks, by pinpointing leaks more quickly.

This new technology involves how and when water is applied or applying the right amount of water for plants using new methods such as software models and sensors.

This process involves protecting areas from development in order to safeguard water quality.

Applying nitrogen fertilizers on fields next to rivers and streams increases the risk of:

Which of the following is not a physical method of water purification?

Chlorination is a physical method of water purification.

The most common water filter is:

The most common disinfectant used in water is:

Making use of available water before it drains away or evaporates.