Question
Match the following: 1. Soil
moisture tension a. Flame Photometer 2. Nitrogen estimation b. Kjeldhal apparatus 3. Evapotranspiration c. Lysimeter 4. Potassium estimation d. TensiometerSolution
1. Soil moisture tension d. Tensiometer 2. Nitrogen estimation b. Kjeldhal apparatus 3. Evapotranspiration c. Lysimeter 4. Potassium estimation a. Flame Photometer
The gas usually causing explosions in coal mines is-
The element used in the manufacture of safety matches is —
The chemical name of'Common salt’
The major component of honey is-
Which one amongst the following is not a Green House gas?
The most reactive among the halogens is-
___________ is the process in which acids and bases react to form salts and water.
Urea is a —
Manganite is an ore/mineral of
Which of the following is a physical change?