Explain Why The Amount Of Water A Person Needs To Survive Can Be Highly Variable.?
The amount of water needed to sustain a person is highly variable because it depends upon not only the temperature and humidity of the environment where they live but the level of physical activity they engage in as well. … Less than 1% of Earth’s water is liquid freshwater.
Which of the following best explains why humans need constant supply of fresh water?
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 if the following is not a risk factor for water intoxication?
heat stress c. resting d. overexertion. Weegy: Resting is not a risk factor for water intoxication.
Which of the following activities depend upon the availability of supplies a freshwater?
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 these constitutes the greatest use of freshwater by humans?
In most regions of the world over 70 percent of freshwater is used for agriculture. By 2050 feeding a planet of 9 billion people will require an estimated 50 percent increase in agricultural production and a 15 percent increase in water withdrawals.
Which of the following best explains why humans need constant supplies of fresh water a Humans need a constant supply of water to provide them with essential vitamins?
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 best describes the effects of water pollution on aquatic ecosystems?
Which of the following best describes the effects of water pollution on aquatic ecosystems? … It can cause long-term alterations of aquatic ecosystems.
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.
Which of the following is a consequence of water polluted by human sewage?
Health Effects
Life-threatening human pathogens carried by sewage include cholera typhoid and dysentery. Other diseases resulting from sewage contamination of water include schistosomiasis hepatitis A intestinal nematode infections and numerous others.
Which of the following defines potable water quizlet?
The defining characteristic of potable water is that it can be consumed without risk of harm. Potable water is of a sufficiently high quality and purity that it lacks pathogens or contaminants that might otherwise pose a hazard to humans.
Why is the amount of freshwater on earth important for human needs?
Usable fresh surface water is relatively scarce. To many people streams and lakes are the most visible part of the water cycle. Not only do they supply the human population animals and plants with the freshwater they need to survive but they are great places for people to have fun.
What does water variability affects for us?
How does the ocean lose water to air? … What are three things that water variability affects for us? Drought flood and population density. How are the land air and water heated each day?
What happens if we do not take care of water resources?
However global water supplies are decreasing due to pollution and contamination. Conserving water will help maintain the water supply necessary for food production. Crops cannot grow without adequate moisture so if the water supply diminishes food prices will rise and more people will experience food insecurity.
Why do we need water in our daily life?
Around 60 percent of our body is made up of water and we can only live three to five days without fluids. Water plays many important roles in the body including flushing waste from the body regulating body temperature transportation of nutrients and is necessary for digestion.
How do we use water in our daily life?
How is water used for domestic purposes?
Why has groundwater use increased over time?
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.
Why is groundwater an important source of freshwater storage quizlet?
Groundwater is an important source of freshwater partly because it accounts for approximately 30% of the Earth’s freshwater. Groundwater is an important source of freshwater for areas that do not have access to other sources of freshwater such as areas that are experiencing droughts.
Does drinking non potable water does not carry significant health risks?
Drinking non-potable water does not carry significant health risks. … Humans need a constant supply of water to maintain proper hygiene.
What is the most serious effect of water pollution created by human activity quizlet?
What is the most serious effect of water pollution created by human activity? It can affect the health of people or animals.
Which best describes water pollution?
Answer: Water pollution is a large set of adverse effects upon water bodies (lakes rivers oceans groundwater) caused by human activities. … Organic wastes such as sewage and farm waste impose high oxygen demands on the receiving water leading to oxygen depletion with potentially severe impacts on the whole eco-system.
What are three problems that result from polluted water?
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.
How does water pollution affect households and local residents?
HOUSEHOLD- Water Pollution affects the households and local residents by creating unsafe water to consume as well as food. Another factor is beaches and land for families’ even animals to be in/on. … FACTOR MARKETS- If the water is polluted because it’s being sold in stores this can cause an epidemic.
What are the effects of water pollution to the environment?
How can water pollution affect the environment?
The main problem caused by water pollution is the effect it has on aquatic life. Dead fish birds dolphins and many other animals often wind up on beaches killed by pollutants in their habitat. Pollution disrupts the natural food chain as well. Pollutants such as lead and cadmium are eaten by tiny animals.
How does water pollution affect the environment and humans?
How is man affected by polluted drinking water?
Water pollution causes many waterborne contagious diseases which are the results of fecal-oral route of infection. Health risks resulted by water pollution includes different diseases like cancer diarrheal disease respiratory disease neurological disorder and cardiovascular disease.
What are the main reasons for water pollution?
- Industrial Waste. …
- Sewage and Wastewater. …
- Mining Activities. …
- Marine Dumping. …
- Accidental Oil Leakage. …
- The burning of fossil fuels. …
- Chemical fertilizers and pesticides. …
- Leakage From Sewer Lines.
Which of the following defines potable water?
Potable water also known as drinking water comes from surface and ground sources and is treated to levels that that meet state and federal standards for consumption. Water from natural sources is treated for microorganisms bacteria toxic chemicals viruses and fecal matter.
What is potable water defined as?
The term ‘potable’ means safe to drink and is derived from the Latin ‘potare’ meaning ‘to drink’. The term ‘potable water’ refers to water that is safe for humans to drink. This may be referred to as ‘drinking water’. … Fresh water typically needs to be treated to make it suitable for drinking.
Which of the following is a way in which water resources are consumed quizlet?
Crop irrigation is one way in which freshwater resources are consumed.
Does the amount of water on Earth change explain your answer?
Water—the main reason for life on Earth—continuously circulates through one of Earth’s most powerful systems: the water cycle. Water flows endlessly between the ocean atmosphere and land. Earth’s water is finite meaning that the amount of water in on and above our planet does not increase or decrease.
How much of Earth’s water is freshwater that can be used for drinking and agriculture?
0.5% of the earth’s water is available fresh water. If the world’s water supply were only 100 liters (26 gallons) our usable water supply of fresh water would be only about 0.003 liter (one-half teaspoon). In actuality that amounts to an average of 8.4 million liters (2.2 million gallons) for each person on earth.
What effect does the water cycle have on the total amount of water on Earth?
Water continually evaporates condenses and precipitates and on a global basis evaporation approximately equals precipitation. Because of this equality the total amount of water vapor in the atmosphere remains approximately the same over time.
What would happen if you didn’t drink water? – Mia Nacamulli
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