Wells are fed by
(a) pond water.
(b) lake water.
(c) rain water.
(d) ground water
1 Answers
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(a) The stone is dropped from a tower of 500 m height into a pond of water at the base of the tower.
(a) Given, Height of the tower, h = 500m Time taken by stone to reach water surface from the top of the tower: using h = ut + 1 2 gt 2 Time 1 = √ 2ℎ...
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A pond of depth 20 cm is filled with water of refractive index 4/3. Calculate apparent depth of the tank when viewed normally.
When pond is viewed normally, then apparent depth is same as the real depth. So, the apparent depth will be 20cm
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Half of a herd of deer are grazing in the field and three fourths of the remaining are playing nearby. The rest 9 are drinking water from the pond.
Let total no.of deer = x half of herd =x/2 3/4 of remaining half herd =(x/2)(3/4) ...
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In towns and cities, generally, the bore wells have to be dug very deep to get water as compared to bore wells dug in villages.
(a) This is so because of excessive use of water which depletes the ground water. (b) Towns and cities have asphalted roads and vast areas of soil are concreted. As a...
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A lotus is 2m above the water in a pond. Due to wind the lotus slides on the side and only the stem completely submerges in the water
(x+2)2 = x2 + 102 x2 + 4x + 4 = x2 + 100 => 4x + 4 = 100 => x = 24 Depth of the pond = 24m
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Choose the correct answer. (a) Ring wells were used for:
(a)Ring wells were used for--- (4) drainage.
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There are two old wells in the area where Punita lives. Her grandmother says that about fifteen- twenty years
The reasons mentioned above are, of course, the causes of this sorry states. However, cutting of trees, lack of maintenance etc. may also be the reason for the same.
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What arrangements for water can you see inside the fort? For example, wells, tanks, step wells.
For water, five baolis and three hauz have been made. On the map 1 cm distance is equal to a distance is equal to a distance of 110 metres on...
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Do you now get some idea about how the tanks could have been filled by lifting water from the wells?
Yes, the tanks could have been filled up by lifting water from the wells using this technique.
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The release of which one of the following into ponds and wells helps in controlling the mosquitoes?
(c) Gambusia affinis is an larvivorous fish. This fish is released into ponds and wells to controlling the mosquitoes by eating mosquito larvae, insects and crustaceans.
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