Oil is sprayed over stagnant water in which mosquitoes breed in order to
provide landing surface for the adult
prevent larva or pupa from attaching itself to the surface
prevent the water from overheating
lubricate the larva for easy movement
provide surface for laying their eggs
Correct answer is B
No explanation has been provided for this answer.
Which of the following statements about poliomyelitis is not correct. It
is a bacterial disease
is capable of paralysing the limbs
can be prevented by immunization
is an infant disease
may cause wasting of the limb muscles
Correct answer is A
No explanation has been provided for this answer.
which of the following plant parts is not a storage organ?
Carrot root
Sugarcane stem
Onion leaf
Banana stem
Cassava root
Correct answer is D
No explanation has been provided for this answer.
The earthworm is important because
its body is always moist
each of its segments has chaetae
It has a clitellum
it aerates the soil
it reproduces fast
Correct answer is D
No explanation has been provided for this answer.
Which of the following organisms will be a colonizing species of a heap of moist sub soil?
Green algae
Ferns
White mangrove
Snails
Tadpole
Correct answer is B
No explanation has been provided for this answer.