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Have you seen buffaloes enjoy a dip in r...

Have you seen buffaloes enjoy a dip in river or in lake on a hot summer afternoon. Can you say why they do this?

A

They enjoy taking a bath in summers.

B

They have to clean the mud from their body to prevent infections.

C

Their black bodies absorb heat and the water helps to keep them cool.

D

They like to swim.

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The correct Answer is:
**Step-by-Step Solution:** 1. **Observation of Behavior**: Buffaloes are often seen enjoying a dip in rivers or lakes during hot summer afternoons. This behavior prompts us to question the reason behind it. 2. **Understanding Temperature**: On a hot summer day, the surrounding temperature can be quite high, often around 40 degrees Celsius or more. In contrast, the temperature of water in rivers or lakes is usually lower, approximately around 30 degrees Celsius. 3. **Heat Absorption**: The buffaloes have black bodies, which means they absorb more heat compared to lighter-colored animals. Black surfaces absorb most of the heat from sunlight, causing their body temperature to rise significantly. 4. **Cooling Effect**: By immersing themselves in the cooler water, buffaloes can lower their body temperature. The water, being at a lower temperature than their body, helps in transferring heat away from their bodies, providing a cooling effect. 5. **Conclusion**: Therefore, buffaloes dip in water to cool themselves down. The combination of their black coloration, which absorbs more heat, and the cooler temperature of the water, allows them to regulate their body temperature effectively during hot summer afternoons. **Final Answer**: Buffaloes enjoy a dip in water on hot summer afternoons because their black bodies absorb a lot of heat, and the cooler water helps to keep them cool. ---

**Step-by-Step Solution:** 1. **Observation of Behavior**: Buffaloes are often seen enjoying a dip in rivers or lakes during hot summer afternoons. This behavior prompts us to question the reason behind it. 2. **Understanding Temperature**: On a hot summer day, the surrounding temperature can be quite high, often around 40 degrees Celsius or more. In contrast, the temperature of water in rivers or lakes is usually lower, approximately around 30 degrees Celsius. 3. **Heat Absorption**: The buffaloes have black bodies, which means they absorb more heat compared to lighter-colored animals. Black surfaces absorb most of the heat from sunlight, causing their body temperature to rise significantly. ...
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MTG IIT JEE FOUNDATION-TEMPERATURE AND HEAT-EXERCISE (MULTIPLE CHOICE QUESTIONS)
  1. Firemen crawl when entering a burning building because

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  2. Black bodies are

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  3. In solar cooker

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  4. Can you say which of these is the temperature inside the Sun?

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  5. A cotton filled quilt keeps a person warm in winter because

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  6. In summer, we prefer to wear

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  7. Have you seen buffaloes enjoy a dip in river or in lake on a hot summe...

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  8. The normal temperature of human body is

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  9. The heat from the sun reaches us on the earth by the process of :

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  10. Heat flows always

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  11. When you put a metal key into its metal lock, you find the key is too ...

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  12. Deepak put twenty ice cubes of the same volume into four containers pa...

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  13. An iron ball at 40^@C is dropped in a mug containing water at 40^@C ....

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  14. A wooden spoon is dipped in a cup of ice cream. Its other end

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  15. Stainless steel pans are usually provided with copper bottoms. The rea...

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  16. Which of the following statements about the expansion of matter is not...

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  17. A clinical thermometer is calibrated from

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  18. In which of the following process, convection does not take place pri...

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  19. The equatorial and polar regions of the earth receive unequal solar he...

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  20. Which of the following is true?

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