Read the following pasange given below and answer the question that follows
Water is a vital renewable natural resource. Threefourth's of the earth's surface is covered with water. It is therefore appropriately called the water planet'. It was in the primitive oceans that life began almost 3.5 billion years back. Even today, the oceans cover two-thirds of the earth's surface and support a rich variety of plant and animal life. The ocean water is however saline and not fit for human consumption. Fresh water accounts for only about 2.7 per cent. Nearly 70 per cent of this occurs as ice sheets and glaciers in Antarctica, Greenland and mountain regions. Due to their location they are inaccessible. Only 1 per cent of freshwater is available and fit for human use. It is found as ground water, as surface water in rivers and lakes and as water vapour in the atmosphere. Fresh water is therefore, the most precious substance on earth. Water can neither be added nor subtracted from the earth. Its total volume remains constant. Its abundance only seems to vary because it is in constant motion, cycling through the oceans, the air, the land and back again, through the processes of evaporation, precipitation and run off. This as you already know is referred to as the water cycle'.
Answer the questions.
24.1 On an average, one spell of rain for two hours is enough to save litres of water.
1) 5,000 2) 7,000 3) 9,000 4) 8,000
24.2 In a year, how many litres of water is wasted through dripping tap system?
1) 1,000 2) 1,300 3) 1,200 4) 1,400
24.3 Only 1 percent of freshwater is available for human use and it is found in
1) Lakes 2) Oceans 3) Seas 4) All of these
24.4 Identify the process involved in the water cycle".
1) Weathering, evaporation and precipitation
2) Condensation, evaporation and fragmentation
3) Evaporation, precipitation and run-off
4) Fragmentation, condensation and evaporation
Answers
Answered by
1
Answer:
1)2
2)3
3)1
4)3
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Answered by
1
Answer:
1) b
2) c
3) d
4) c
Explanation:
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