Question

Instruments used in Agro-meteorology are: A. Sunshine recorder, B. Anemometer, C. Penetrometer, D. Rain gauge, E. Pan evaporimeter.

• A. A and B only
• B. A, B and C only
• C. A, B, C and D only
• D. A, B, D and E

Hint:

Rain gauge measures rainfall, anemometer measures wind speed, and pan evaporimeter measures evaporation.

Answer 1

The Correct Option is D

Concept:
Agro-meteorology deals with weather and climate parameters related to agriculture. It uses instruments for measuring sunshine, wind, rainfall, evaporation and other meteorological factors.

Step 1: Check sunshine recorder.
Sunshine recorder is used to measure duration of bright sunshine. \[ A \text{ is correct} \]

Step 2: Check anemometer.
Anemometer is used to measure wind speed. \[ B \text{ is correct} \]

Step 3: Check penetrometer.
Penetrometer is used to measure soil penetration resistance or compaction. It is not a regular agro-meteorological instrument. \[ C \text{ is incorrect} \]

Step 4: Check rain gauge.
Rain gauge is used to measure rainfall. \[ D \text{ is correct} \]

Step 5: Check pan evaporimeter.
Pan evaporimeter is used to measure evaporation. \[ E \text{ is correct} \] Thus, the correct instruments are: \[ A,B,D,E \] \[ \therefore \text{Correct Answer is (D)} \]