The main river along with all its tributaries that drain an area forms a river
  • a)
    River mouth
  • b)
    Basin
  • c)
    Tributaries
  • d)
    Delta
Correct answer is option 'B'. Can you explain this answer?

Sheela Devi answered  •  57 minutes ago
 A river basin is the portion of land drained by a river and its tributaries. It encompasses all of the land surface dissected and drained by many streams and creeks that flow downhill into one another.

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The air breathe exist in
  • a)
    Troposphere
  • b)
    Mesosphere
  • c)
    Thermosphere
  • d)
    Stratosphere
Correct answer is option 'A'. Can you explain this answer?

Birmati Devi answered  •  57 minutes ago
Beginning at the surface of Earth, the troposphere extends to around seven miles up. This is the layer we live in and contains most of what we consider to be "the atmosphere", including the air we breathe and nearly all of the weather and clouds we see.

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On Amazon basin
  • a)
    day and nights are almost equally cool and dry
  • b)
    day and nights are almost equally hot and humid
  • c)
    night are longer than day and are more hot and humid
  • d)
    day are longer than nights and are more cool and humid
Correct answer is option 'B'. Can you explain this answer?

Rajo answered  •  57 minutes ago
The Amazon Basin stretches directly on the equator and is characterized by hot and wet climate throughout the year. Both day and nights are almost equally hot and humid. The skin feels sticky. It rains almost every day, that too without much warning. The day temperatures are high with very high humidity. At night the temperature goes down but the humidity remains high.

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