Question

Match List-I with List-II

Choose the correct answer from the options given below:

• (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
• (A) - (IV), (B) - (III), (C) - (II), (D) - (I)
• (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
• (A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Hint:

"Okta" is a highly unique unit used exclusively for cloud cover.
Knowing that 1 Okta \( = 1/8 \) of the sky dome covered by clouds simplifies this matching question immediately.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Meteorological and soil physical parameters are measured using specific instruments and expressed in standardized units.
Accurate measurement of these parameters is essential for agrometeorology, crop water requirement calculations, and climatology.

Step 2: Detailed Explanation:
- (A) Cloud Cover: Cloud cover is defined as the fraction of the sky covered by clouds.
It is measured and expressed in Oktas, where 0 Okta indicates a completely clear sky and 8 Oktas indicates a completely overcast sky. Thus, (A) matches (IV).
- (B) Soil Temperature: Temperature is the degree of hotness or coldness of the soil, measured using soil thermometers.
It is commonly expressed in degrees Celsius (\(^\circ\text{C}\)) or Fahrenheit. Thus, (B) matches (III).
- (C) Wind Speed: Wind speed is the rate of air movement, measured using anemometers.
It is commonly expressed in kilometers per hour (Km/hr) or meters per second. Thus, (C) matches (II).
- (D) Relative Humidity: Relative humidity is the ratio of actual water vapor pressure to the saturation water vapor pressure at a given temperature.
It is expressed as a percentage (%). Thus, (D) matches (I).
Combining these pairs gives: (A) - (IV), (B) - (III), (C) - (II), (D) - (I).
This matches Option (B).

Step 3: Final Answer:
The correct matching sequence is (A) - (IV), (B) - (III), (C) - (II), (D) - (I).