Question:

Assertion A: The first shorter cycle is from precipitation into the soil and then as evaporation and transpiration back to the atmosphere is called blue water.
Reason R: The second cycle or green water follows longer path from precipitation through soil moisture, ground water and rivers to the soil.
In light of the above statements, choose the correct answer from the options given below:

Show Hint

Green water: soil moisture used by plants.
Blue water: surface and groundwater.
Green water cycle is shorter than blue water.
  • Both A and R are true and R is the correct explanation of A
  • Both A and R are true but R is NOT the correct explanation of A
  • A is true but R is false
  • A is false but R is true
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The Correct Option is D

Solution and Explanation

Step 1: Understanding the Concept:
Water is classified as blue water and green water.
The definitions are specific.

Step 2: Key Formula or Approach:

No specific formula.
Need to understand the concepts of blue and green water.

Step 3: Detailed Explanation:

Green water is the water from precipitation that is stored in the soil.
It is used by plants for evapotranspiration.
Blue water is the water in rivers, lakes, and groundwater.
The shorter cycle is green water (evapotranspiration).
The longer cycle is blue water (through rivers to oceans).
Assertion A is false because it has the definitions reversed.
Reason R is true because it correctly describes the longer cycle.
Thus, A is false but R is true.

Step 4: Final Answer:

A is false but R is true.
Hence, the correct option is (D).
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