Water Quiz 2 Environmental

Which answers are below are the reasons for unequal distribution?

• Being rich or poor

• There is no modern plumbing access to water

• fresh water access due to contaminated water and walking many miles to water source

• Water is often wasted for building projects and irrigation

• All the above

A process that removes salt from the ocean water.

• desalination

• hydroelectricity

• irrigation

• fossil water

Why is desalination not a practical process for water usage?

• No one knows how to do it

• It is too hard

• It is too expensive and not practical to meet the region's needs

Chemical pesticides tend to be used in terrestrial ecosystems, but they are commonly found in the tissues of aquatic organisms. Because of this, birds and other animals with a diet high in fish commonly suffer the effects of biological magnification. How do these pesticides end up in these aquatic ecosystems?

• Pesticides evaporate and are delivered to water sources by rainfall

• Land animals containing pollutants die and decompose in waterways

• Pesticides are carried to water sources by freshwater runoff.

Most health experts recommend only eating tuna a few times a week and only eating shark a few times a month. Why would health experts have this view of eating these fish?

Hint: think biomagnification

• Most fish are low in protein and high in saturated fats which can cause health problems

• People with diets high in fish tend to have high blood pressure and heart issues

• Eating these fish could result in the buildup of pollutants in the fat tissue of humans

Pollution resulting from the use of fertilizers and the disposal of sewage from humans and livestock can lead to an algal bloom. The effects of these pollutants on algae growth can be intensified as a result of which of the following?

• The decreased use of solar power

• An increase in freshwater runoff

• An increase in organic farming practices

What percent of Earth's water is the oceans?

• 70%
• 85%
• 90%
• 97%

Which of the following is a possible negative effect of the use

of these chemicals on the environment?

• Runoff carries these chemicals into lakes and streams.

• Theses chemicals cannot be purchased in large bulk.

• These chemicals are expensive to produce.

• Storage space for these chemicals is limited.

Where do fertilizer runoffs happen?

• ocean

• rivers

• lakes

• aquifers

• all of the above

Fertilizer runoffs are created by humans

• true

• false