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to inspect if the cylinder has the water leakage to expel out the residual water /gas /oil from the cylinder to check if fuel supply is normal A and B
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a. How much fresh water is tied up in glacial ice 75 % of the Earth’s fresh water supply. 90% of the Earth’s fresh water supply. Enough to support human beings for 1,000 years. As much as the water from 10,000 trillion metric tons of ic
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Natural barriers to sea water have been destroyed, The water table has gone down after droughts. Sea level has been continuously rising. Evaporation of water leaves salt behind.
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A limited water supply will affect industrial production. Every large city purifies and reuses its water. Purified water is not exactly as fresh as spring water. Oceans are the largest water sourc
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