Maize is best stored against insect attack
on raised platforms
in fumigated silos
in a sunny area
while still on the cob
in humid metal tanks
Correct answer is B
No explanation has been provided for this answer.
Which of the following methods is used in food preservation for a long period?
adding oil to food
Exposing food to fresh air
keeping the food in a store
Warming the food daily
Salting and drying the food
Correct answer is E
No explanation has been provided for this answer.
Which of the following groups of organisms feeds directly on green plants?
Producer
Decomposer
Primary consumer
Secondary consumer
Tertiary consumer
Correct answer is C
No explanation has been provided for this answer.
biotic factors
climatic factors
physiographic factors
edaphic factors
abiotic factors
Correct answer is A
No explanation has been provided for this answer.
Pests can be controlled without the subsequent danger of polluting the ecosystem by
introducing a population of species similar to that of the pest
increasing the population of the natural enemies of the pest
eliminating the natural enemies of the pest
keeping the population of natural enemies of the pest constant
spraying the ecosystem with pesticide
Correct answer is B
No explanation has been provided for this answer.