MCQs
Read every question, see the correct answer, and understand the explanation at your own pace. Study mode has no timer and no negative marking.
Correct answer
D. Predator
Explanation
The correct answer is Predator.
Correct answer
A. 53°c for 6 hrs
Explanation
The correct answer is 53°c for 6 hrs.
Correct answer
C. Sodic soil
Explanation
The correct answer is Sodic soil.
Correct answer
D. NH4
Explanation
In submerged (flooded) soil conditions, which are typical for rice paddies, the oxygen levels are low, leading to anaerobic conditions. Under these conditions, ammonium (NH4+) is more stable and available for plant uptake compared to nitrate (NO3-) and nitrite (NO2-), which are less stable and can be lost through denitrification processes. Rice plants are well-adapted to take up nitrogen in the form of ammonium, making NH4 the preferable form of nitrogen in submerged soils.
Correct answer
C. Truck farming
Explanation
The correct answer is Truck farming.
Correct answer
C. None of the above
Explanation
The correct answer is None of the above.
Correct answer
D. Silva culture
Explanation
The correct answer is Silva culture.
Correct answer
A. Fiscal policy
Explanation
The correct answer is Fiscal policy.
Correct answer
A. F-value
Explanation
The correct answer is F-value.
Correct answer
A. Koelreuter (1763)
Explanation
The correct answer is Koelreuter (1763).