Controlled burning has the advantage of
Increasing the number of soil organisms
Inducing re-growth of pasture grasses
Increasing the amount of nutrients in the soil
Improving soil structure
Correct answer is B
No explanation has been provided for this answer.
The atmosphere gains carbon dioxide through the following ways except
Burning of fuel such as coal and wood
Respiration by plants and animals
Photosynthesis in plants
Death and decay of plants and animals
Correct answer is C
No explanation has been provided for this answer.
Magnesium deficiency in crops can be corrected by the application of
Dolomite
Limestone
Quicklime
Urea
Correct answer is A
No explanation has been provided for this answer.
It is not advisable to apply fresh farmyard manure because
Its heat of decomposition may cause scorching of plants
Some microorganisms in the manure may die
The manure may increase soil acidity
The manure may increase soil alkalinity
Correct answer is A
No explanation has been provided for this answer.
Chemical weathering is fastest in
Cool weather
Hot weather
High altitudes
Low altitudes
Correct answer is A
No explanation has been provided for this answer.