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All questions of Water for Class 10 Exam
Which of the following is not a problem with water supplies in LEDCs?- a)Lack of available clean water
- b)Diseases spread via the water supply
- c)Water pollution
- d)There is no water available
Correct answer is option 'D'. Can you explain this answer?
a)
Lack of available clean water
b)
Diseases spread via the water supply
c)
Water pollution
d)
There is no water available
 | Knowledge Centre answered |
Often there is plenty of water available in LEDCs, with some suffering from flooding more than droughts. It's the lack of clean, safe water that is the real issue. Technologies that clean water are as important as ones supplying water
What is a watershed?- a)A large body of freshwater
- b)The area of land where all water drains into a particular river or lake
- c)A deep underground reservoir of water
- d)A small pond or lake
Correct answer is option 'B'. Can you explain this answer?
What is a watershed?
a)
A large body of freshwater
b)
The area of land where all water drains into a particular river or lake
c)
A deep underground reservoir of water
d)
A small pond or lake
| | Knowledge Centre answered |
A watershed is the area of land where all water drains into a particular river, lake, or other body of water, affecting the quality and quantity of water resources.
Which of the following is not a way that providing clean water benefits local populations?- a)It reduces disease and illness from contaminated water
- b)It increases the time available for work and education
- c)It reduces the cost of drinking water
- d)It allows local businesses to profit by selling clean water at high cost
Correct answer is option 'D'. Can you explain this answer?
a)
It reduces disease and illness from contaminated water
b)
It increases the time available for work and education
c)
It reduces the cost of drinking water
d)
It allows local businesses to profit by selling clean water at high cost
| | Knowledge Centre answered |
When clean water is scarce it is often sold from tankers and other sources at a high cost. Providing clean, reliable and affordable sources of water allows the local economy to grow as people have more time for work and education and fewer days off due to illness
How does water move through the water cycle? - a)Water moves from rivers into lakes
- b)Water moves from oceans to clouds through evaporation
- c)Water moves from clouds to oceans through precipitation
- d)Water moves from glaciers to rivers through melting
Correct answer is option 'B'. Can you explain this answer?
How does water move through the water cycle?
a)
Water moves from rivers into lakes
b)
Water moves from oceans to clouds through evaporation
c)
Water moves from clouds to oceans through precipitation
d)
Water moves from glaciers to rivers through melting
| | Knowledge Centre answered |
In the water cycle, water moves from oceans to clouds through evaporation, where it condenses into clouds, then falls back to Earth as precipitation (rain or snow).
What is an advantage of boreholes over hand dug wells?- a)They require a pump to bring up the water from the depths
- b)Since they reach the water table, they are a more reliable and cleaner source of water
- c)They need the area to be surveyed to find the correct location for the well to be sunk
- d)They require equipment and skills that often have to be brought in
Correct answer is option 'B'. Can you explain this answer?
a)
They require a pump to bring up the water from the depths
b)
Since they reach the water table, they are a more reliable and cleaner source of water
c)
They need the area to be surveyed to find the correct location for the well to be sunk
d)
They require equipment and skills that often have to be brought in
| | Knowledge Centre answered |
Boreholes are a more reliable source and will tap into underground reservoirs, leading to their use in many MEDCs - but they are a higher cost option then digging a simple well
Which of the following is one way that education can help safeguard water supplies in poorer areas of LEDCs?- a)Teaching farmers to use less water intensive crops
- b)Stop all pollution entering rivers
- c)Increase the amount of water entering the system
- d)Reduce flood events by reducing the amount people discharge into rivers
Correct answer is option 'A'. Can you explain this answer?
a)
Teaching farmers to use less water intensive crops
b)
Stop all pollution entering rivers
c)
Increase the amount of water entering the system
d)
Reduce flood events by reducing the amount people discharge into rivers
| | Knowledge Centre answered |
Education can not only help reduce water usage, but also teach people to do more with what they have, and to safeguard the supplies by reducing the chances of contamination
Which of the following is not a method of harvesting water?- a)Collecting rainwater off roofs
- b)Damming areas to catch runoff during times of heavy rainfall
- c)Borehole drilling to reach the water table
- d)Storing water from rivers during seasonal high waters or flooding
Correct answer is option 'C'. Can you explain this answer?
a)
Collecting rainwater off roofs
b)
Damming areas to catch runoff during times of heavy rainfall
c)
Borehole drilling to reach the water table
d)
Storing water from rivers during seasonal high waters or flooding
| | Knowledge Centre answered |
Rainwater harvesting relies on the use of the water that falls as rain, rather than water from reservoirs underground. Building recommendations in the UK state that rainwater harvesting and storage should be incorporated into building designs where possible
How does water pollution affect aquatic life? - a)It increases biodiversity
- b)It improves water quality
- c)It harms fish and other organisms
- d)It provides nutrients for algae growth
Correct answer is option 'C'. Can you explain this answer?
How does water pollution affect aquatic life?
a)
It increases biodiversity
b)
It improves water quality
c)
It harms fish and other organisms
d)
It provides nutrients for algae growth
| | Knowledge Centre answered |
Water pollution can harm aquatic life by contaminating water with toxins, chemicals, and debris, affecting fish, plants, and other organisms that depend on clean water for survival.
Charities often report that they are providing new spring fed systems in areas that already have a non-functioning one. Why might it be the case that the systems provided are falling into disrepair?- a)The local population lack the skills and tools to keep them repaired
- b)The systems are designed so only the people that install them can maintain them
- c)The local people would rather leave it for the charities to repair
- d)The equipment is almost impossible to maintain without very expensive tools
Correct answer is option 'A'. Can you explain this answer?
a)
The local population lack the skills and tools to keep them repaired
b)
The systems are designed so only the people that install them can maintain them
c)
The local people would rather leave it for the charities to repair
d)
The equipment is almost impossible to maintain without very expensive tools
| | Knowledge Centre answered |
Several charities now work not just to provide clean drinking water but also the skills, tools and parts to allow the local population to repair and maintain their own water systems
What is one of the main reasons domestic use of water is higher in MEDCs than in LEDCs?- a)People in MEDCs tend to drink more water
- b)Labour saving devices, such as washing machines and dishwashers, are more popular in MEDCs
- c)In MEDCs, people leave the taps running when not needed
- d)Fishponds and swimming pools are much more common in MEDCs
Correct answer is option 'B'. Can you explain this answer?
What is one of the main reasons domestic use of water is higher in MEDCs than in LEDCs?
a)
People in MEDCs tend to drink more water
b)
Labour saving devices, such as washing machines and dishwashers, are more popular in MEDCs
c)
In MEDCs, people leave the taps running when not needed
d)
Fishponds and swimming pools are much more common in MEDCs
| | Knowledge Centre answered |
Houses in MEDCs use far more water than in LEDCs. The use of rainwater harvesting and storage may in the future reduce the water usage by up to 50%
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