Unit 2
Water
Learning
Objectives
• To
recognize the sources and availability of water
• To
clarify the composition of water and the process of water cycle
• To
develop skills in suggesting ways to conserve water
• To
realize the importance of water for life on earth
• To
appreciate the efforts made to conserve water
Introduction
Water is one of the
basic substance present in the earth. It plays a vital role in the evolution
and survival of life. It is impossible to imagine life on the earth without
water. Water helps to regulate the temperature of our planet. It also helps to
maintain the temperature in organisms.
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