The processes by which animals release carbon dioxide into the air are
Respiration and decay
Respiration and ammonification
Nitrification and decay
Denitriflcatin and ammonification
Correct answer is A
No explanation has been provided for this answer.
Plant nutrients are restored during the fallow period through
Reduced soil erosion
Accumulation of soil organic matter
Reduced evaporation from the soil
Accumulation of farmyard manure
Correct answer is B
No explanation has been provided for this answer.
Which of the following species of bacteria lives symbiotically in root nodules of legumes?
Azotobacter
Clostridium
Nitrobacter
Rhizobium
Correct answer is D
No explanation has been provided for this answer.
Soils can become acidic as a result of the continuous application of
Single superphosphate
Sulphate of ammonia
Muriate of potash
NPK 15: 15: 15
Correct answer is A
No explanation has been provided for this answer.
When compost is added to soil, it
Reduces the activities of living organisms
Increases the porosity of the soil
Increases water-holding capacity of the soil
Decreases the soil acidity
Correct answer is C
No explanation has been provided for this answer.