Which of the following agronomic practices is not applicable to rice production?
Threshing
Transplanting
Staking
Puddling
Correct answer is C
No explanation has been provided for this answer.
The gas produced when a mixture of sodium propanoate and soda lime is heated is
methane
pentane
ethane
butene
ethyne
Correct answer is C
So during the presence of methane, sodium ethanoate with soda lime is used, using sodium propanoate with sodium will produce ethane according to the equation below
\CH3CH2COONa+NaOH→C2H6+Na2CO3\
Fructose and glucose are classified as carbohydrates because they
are crystalline white solids
are energy -giving substances
are naturally occurring organic compounds
contain carbon oxygen and hydrogen
conform to the general formula Cx(H2O)y
Correct answer is E
No explanation has been provided for this answer.
A plant not normally used as green manure is
Mucuna utilis
Sida acuta
Centrosema pubescens
Pueraria phaseoloides
Correct answer is B
No explanation has been provided for this answer.
Which of the following sequence of pre-planting operation is correct?
Bush clearing, farm layout, burning and stumping
Stumping, bush clearing, farm layout and burning
Burning, farm layout, clearing and stumping
Bush clearing, burning, stumping and farm layout
Correct answer is D
No explanation has been provided for this answer.