Questions

[1 Marks Each] QUE - ANS

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27 questions · timed · auto-graded

Question 11 Mark
How do we get rain from the clouds?
Answer
At sufficient heights, the air becomes so cool that the water droplets present in it condenses to form big drops of water. The large sized drops of water being heavy falls down as rain.
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Question 21 Mark
From where do the wells or tubewells get water?
Answer
A part of the rainwater flows on the ground and the rest seeps into the ground. Most of this water becomes available to us as ground water. Open wells are fed by ground water. It is this ground water which is drawn by a handpump or a tubewell.
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Question 31 Mark
In what activities do we use water ?
Answer
We use water for our daily activities, drinking, cooking, agriculture, industries, construction, animal husbandry, power plants and transportation in sea-route.
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Question 41 Mark
What is the name of the process by which plants lose water to the atmosphere?
Answer
The process by which plants lose water to the atmosphere is known as transpiration.
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Question 51 Mark
What do you mean by hail?
Answer
When the rainwater gets extremely cold it solidifies to form ice. These small ice balls come down with rain and are known as hail.
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Question 61 Mark
When does a cloud rain?
Answer
On cooling clouds droplets of water form large sized drops of water, and they begin to fall as rain.
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Question 71 Mark
What is a cloud?
Answer
The water vapour in the air condenses to form tiny droplets of water, the collection of these droplets is known as cloud.
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Question 81 Mark
Which process plays an important role in bringing water back to the surface of earth?
Answer
The process of condensation plays an important role in bringing water back to the surface of earth.
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Question 91 Mark
From where do we get drinking water at home?
Answer
We get drinking water from the water supply provided by the Municipal Corporation or Gram Panchayat overhead water tank.
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Question 111 Mark
What sources provide us with ground water?
Answer
Open wells, tubewells and handpumps are sources that provide us with ground water.
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Question 121 Mark
What sources of water do we have?
Answer
Rain, ponds, lakes, rivers and wells, tubewells are our sources of water.
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Question 141 Mark
In which form does water exist in nature?
Answer
Snow, water, water vapour and ice (Solid, liquid, gaseous)
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Question 151 Mark
Which method is well-known now-a-days to increase the water level in the well?
Answer
Rain- water harvesting
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Question 181 Mark
Huge amount of rainwater seeps into the ground and gets stored in there. What is the water thus stored in the ground known as?
Answer
Ground water
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Question 211 Mark
To clean their spectacles, people often breathe out on glasses to make them wet. Explain why the glasses become wet.
Answer
When we breathe out, moist air comes out. Water vapours condenses on glass and get converted into very small droplets. This droplets make the glass wet.
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Question 221 Mark
Take out a cooled bottle of water from refrigerator and keep it on a table. After some time you notice a droplets of water around it. Why?
Answer
The bottle taken out from refrigerator is very cold. Air contains water in the form of vapours. When it comes in contact with cool water bottle, it gets condense and converts into water droplets.
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Question 231 Mark
(State evaporation or condensation) Steam rising from a hot girdle when water is sprinkled on it.
Answer
Evaporation
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Question 261 Mark
(State evaporation or condensation) Steam rising from wet clothes while they are ironed.
Answer
Evaporation
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Question 271 Mark
(State evaporation or condensation) Water drops appear on the outer surface of a glass containing cold water.
Answer
Condensation
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