Which of the following tools are used in soil analysis?
I. pH meter
II. Sieve
III. Hygrometer
- I and II
- I and III
-
I, II and III
- II and III
The correct answer is: C
Explanation
All the tools listed are used in soil analysis. A pH meter is used to measure the acidity or alkalinity of the soil. A sieve is used to separate and grade soil and rock particles according to their size. A hygrometer is used to measure the moisture content in the atmosphere, which can affect soil moisture levels.