The answer is C. The body needs constant supply of water
because the water in the body is continually lost
. On the average, our body contains approximately 60% of water and most of the water is inside the cells.
Which of the following activities depend upon the availability of supplies of fresh water?
Agriculture
is critically dependent upon continual supplies of freshwater. Human households also use freshwater daily for cleaning and laundry as well as for transporting sewage to waste treatment plants.
Which of the following defines potable water?
Potable water is defined as
water that is suitable for human consumption
(i.e., water that can be used for drinking or cooking). … Potable water must meet numerous physical, chemical, microbiological, and radionuclide (q.v.) standards for both the untreated (raw) water sources and the treated water.
Which of the following best explains why humans need constant supplies of fresh water quizlet?
Which of the following best explains why humans need constant supplies of fresh water? … Constant supplies of freshwater
are needed because body water is continually being lost.
Which of the following is the most serious effect of water pollution for humans?
industries thermal waste following
is the most serious effect of water pollution for humans.
What is potable water very short answer?
Potable water is the
water which is fit for human consumption and drinking purposes
. Characteristics: Water is free from harmful bacteria, germs, suspended impurities and salts. It is clear, colourless and odourless.
How do you know if water is potable?
Water that’s safe to drink should ideally be
clear with no odor or funny taste
. If your tap water tastes metallic, smells fishy, or comes out cloudy, it could signal the presence of unsafe contaminants.
What is the pH of pure water?
Pure water has a pH of
7
and is considered “neutral” because it has neither acidic nor basic qualities.
Which of the following best describes the effects of a limited freshwater supply on human population?
The supply of Earth’s fresh water is fixed and is being depleted at a rapid rate. Which of the following best describes the effects of a limited freshwater supply on human populations?
a. b. Disease transmission will decrease as access to water decreases, leading to improved public health
.
Why has groundwater use increased over time quizlet?
Why has groundwater use increased over time? The principal reason for the increase of groundwater use is
the increasing population
. Urbanization and pollution have both contributed to an increase in the use of groundwater. Polluted rivers, lakes, and springs are no longer viable sources of groundwater.
How can buffer strips have a positive impact on waterways quizlet?
How can buffer strips have a positive impact on waterways? Buffer
strips can decrease erosion rates
, as vegetation acts as an anchor to soil. They can also decrease the amount of pollutants entering waterways by slowing runoff from agriculture and soaking up some pollutants before they enter waterways.
What is the most serious effect of water pollution?
In other words, it is
toxic water
that cannot be drunk or used for essential purposes like agriculture, and which also causes diseases like diarrhoea, cholera, dysentery, typhoid and poliomyelitis that kill more than 500,000 people worldwide every year.
What is the most serious effect of water pollution for humans Why?
Health: According to the United Nations, every year there are more deaths caused by polluted water than all types of violence combined, including war. Waste from humans and animals that contaminates water carries
bacteria and viruses
that cause the spread of diseases such as typhoid, cholera and giardia.
What type of pollution that comes from multiple sources?
Nonpoint source pollution
is difficult to control because it comes from many different sources and locations. Most nonpoint source pollution occurs as a result of runoff. When rain or melted snow moves over and through the ground, the water absorbs and assimilates any pollutants it comes into contact with.
What that is fit for drinking is called?
Potable water
. …
What are three water borne diseases?
- Malaria.
- Typhoid.
- Cholera.
- Giardiasis.
- Amoebic Dysentery.
- Amoebiasis.
- Hepatitis A.
- Shigellosis.
