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Practice each question, then open the answer or worked solution.
Which of the following activities does not involve the use of water?
Ans: The correct answer is option (d) Drying wet clothes.
Explanation: When wet garments are dried, water is transformed to vapour.
In which of the following activities will you use a minimum amount of water?
Ans: The correct answer is option (b) brushing teeth.
The quantity of water required to produce one page of your book is
Ans: A correct answer is an option (c).
Explanation: Almost two glasses of water are required to make one sheet of paper.
Water in our tap comes from a
Ans: The correct answer is option (d) river, lake or well.
In which of the following cases evaporation of water will be the slowest?
Ans: The correct answer is option (c).
Explanation: As the temperature rises, evaporation rises as well. The room's temperature will be lower than that of the burner, the rooftop, or sunshine. As a result, at room temperature, evaporation will be slower.
Transpiration is a process in which plants
Ans: The correct answer is option (d).
Explanation: Transpiration is the loss of water in the form of vapour from the exposed sections of a plant (mostly leaves).
Clouds are
Ans: The correct answer is option (a).
Explanation: Clouds occur when water vapour condenses in the air and creates tiny droplets of water that float high in the air.
Wells are fed by
Ans: The correct answer is option (d) Groundwater.
Explanation: Some of this water is absorbed by the ground and soil, increasing the level of groundwater. This groundwater becomes the well's source of water.
Flood causes extensive damage to
Ans: The correct answer is option (d) All of the above.
Explanation: Floods are caused by significant rainfall and a rise in the level of any area's water bodies. The floods are devastating and endangering animal life. Crops, property, human life, and household animals are all destroyed.
“Catch water where it falls” is the basic idea behind
Ans: The correct answer is option (c).
Explanation: The objective was to gather as much water as possible and store it so that there would be no future water scarcity. To collect pure rainwater, people install tankers, containers, and pipes with filters.