Water Borne Diseases

Which of the following is the main cause of water-borne diseases?

• Drought

• Not having proper waste-disposal systems

• nuclear power plants

• deforestation

What problem besides water-born diseases does a lack of clean water cause in Africa?

• fewer trees

• smaller deserts

• difficult to irrigate crops

• easier to prevent desertification

Which of the following is by far the leading cause of water pollution?

• mining

• sewage treatment plants

• factories

• agriculture activities

Of the following organisms, the group that is least likely to cause disease is

• bacteria

• viruses

• algae

• parasitic worms

A body of water can be depleted of its oxygen by

• organic compounds such as oil, plastics, solvents, and detergents

• organic wastes

• sediments and suspended matter

• inorganic wastes

This diagram (oxygen sag curve) is a depiction of what

• may occur during spring floods

• occurs when oxygen-demanding wastes are added to the water

• develops in fast-flowing rivers

• may occur upstream from a sewage treatment plant

Answer explanation

Which of the following is not an example of a water borne disease?

• Cholera

• Bacterial Dysentery

• Yellow Fever

• Typhoid Fever

Which of the following is a result (effect) of unequal access to clean water in Africa?

• More children get access to larger areas of farm land

• Fewer girls are receiving an education in areas of Africa

• Trees begin to grow back at quicker rates

• Less malaria is spreading across Africa

What water borne disease has been practically erradicated due to the efforts of former President Jimmy Carter and the Life Straw?

• Typhoid Fever

• Guinea Worm

• Cryptosporidium

• Giardiasis

What are some ways in which we can decrease the occurrence of water borne diseases?

• Provide people with clean drinking water

• Provide people with sanitary disposal sites

• Have people improve their own hygiene

• All of these are ways to decrease water borne diseases