ECOLOGY
CHEMICAL CYCLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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recycled water
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new water
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salt water
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fresh water
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Detailed explanation-1: -Lakes are bodies of freshwater entirely surrounded by land. There are lakes on every continent and in every ecosystem. A lake is a body of water that is surrounded by land.
Detailed explanation-2: -Freshwater is found in glaciers, lakes, reservoirs, ponds, rivers, streams etc. Freshwater habitats are less than 1% of the world’s total surface area.
Detailed explanation-3: -Oceans are a reservoir of all water sources. The water of oceans is mostly saline and is unfit to use. Water from rivers, and lakes all reach oceans and hence it is not fresh.
Detailed explanation-4: -The ice in the Arctic and Antarctica is salt free. You may want to point out the 4 major oceans including the Atlantic, Pacific, Indian, and Arctic. Remember that the limits of the oceans are arbitrary, as there is only one global ocean. Students may ask what are the smaller salty water areas called.