8th Grade: How Much Do You Actually Know About Earth Science?
While our planet is 70% water only 3% of that water is available as freshwater - and two-thirds of that are locked up as ice! 1. 1 billion people in the world don’t have access to safe drinking water, and a further 2. 7 billion find it difficult to get access to clean water for at least one month of the year.
- 1.
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
- 2.
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
- 3.
How does providing appropriately built and sited toilets increase the availability of fresh water in locations with no running water supplies?
- A.
Toilets can contaminate wells and other water sources with raw sewage if inappropriately built or sited
- B.
Placing toilets far from a settlement will mean less of its fresh water is used for waste disposal
- C.
Using waste water to flush toilets will save fresh water
- D.
Putting the toilets next to the well means that all the infrastructure is located together
- 4.
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
- 5.
Why might wells be a suitable source of water?
- A.
The water will never become contaminated
- B.
They can be dug easily by hand
- C.
The water will never dry up if the water table lowers
- D.
Wells may collapse
- 6.
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
- 7.
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
- 8.
The Pergau Dam project was one in which the British Government agreed to build a dam to provide electricity and clean water in Malaysia. However, there was a condition - Malaysia purchased arms from Britain in return for the aid. It was later shown that the electricity could have been produced in a more effective manner. What is this sort of aid deal, where conditions are attached that do not benefit the poorest sections of the population, referred to as?
- A.
Tied aid
- B.
Brokered aid
- C.
International aid
- D.
Trade agreements
- 9.
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
- 10.
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
Questions: 10 | Attempts: 186352 | Last updated: Mar 22, 2022
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