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A) Water quality is deteriorating because of pesticides, toxic and hazardous wastes, litter and rubbish, decayed organic materials and chemicals.
B) The animals in polar region have thick fur and thick skin to protect themselves from the cold climatic conditions. Tropical deciduous trees shed their leaves in the dry season to conserve water.
C) Today's world is shrinking because of globalization and improved means of transportation and communication.
D) Many a times, temple communicate the importance of a king. By building a temple, the ruler tried to assert his position as the most powerful and divine.
E) Towns grew around temples because temples were central to economy and society.
1) Water is being used injudiciously. Whatever potable water is available, its quality is not good. It is because industrial effluents and untreated water of industries get mixed into streams and rivers. Sewerage water is also gets mixed into these water bodies. As a result, the quality of water is deteriorating day by day.
2) (a) The animals in polar region have thick fur and thick skin to protect themselves from the cold climatic conditions. (b) Tropical deciduous trees shed their leaves in the dry season to conserve water.
3) Today's world is shrinking because we have now various means of communication like newspapers/radio and television. They provide us worldwide information and thus bring the world at our door.
4) Temples were constructed as places of worship and are meant to demonstrate the power, wealth and devotion of the patron. The temples were miniature models of the world ruled by the king and his allies.
5) Towns grew around temples because temples were central to economy and society. Temple authorities used their wealth to finance trade and banking. Also, the large number of pilgrims provided ample opportunities for traders and artisans to conduct business.
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