Question

Hydrology is the science of water which deals with:
(A). Occurance
(B). Distribution
(C). Circulation
Choose the correct answer from the options given below:

• A. (A) only.
• B. (A) and (B) only.
• C. (B) and (C) only.
• D. (A), (B) and (C).

Hint:

The standard definition of hydrology is "the science of occurrence, distribution, and circulation of water on the earth and its atmosphere."
This encompasses all three aspects.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Hydrology is the earth science that studies the water of the Earth.
It addresses the entire lifecycle of water on the planet.

Step 3: Detailed Explanation:
The formal definition of hydrology describes it as the study of:
-

Occurrence (A): Where water exists on the earth, in the air, and beneath the ground.
-

Distribution (B): How water is spread spatially and temporally across geographic features.
-

Circulation (C): How water moves through the hydrologic cycle (precipitation, runoff, infiltration, evapotranspiration).
Hence, all three options are fundamental domains of hydrological science.

Step 4: Final Answer:
Hydrology deals with occurrence, distribution, and circulation, which corresponds to (A), (B), and (C).