The use of water closet and septic tanks is preferred to ...
The use of water closet and septic tanks is preferred to the use of bucket and pit latrines because
it is cost effective
contaminated faeces are completely kept away from flies
the water for flushing contains chlorine which kills the germs
It prevents flies from breeding
Correct answer is B
No explanation has been provided for this answer.
Which of these physiological variations is sex-linked? ...
Which of the following organelles is common to both plant and animal cells? ...
In nature, plants and animals are perpetually engaged in mutualism because ...
The legs and beak of an egret resemble those of the heron because they ...
Water is required for seed germination to take place because it ...
Loamy soil - is used for crop production because of its ...
Older parts of plant roots do not normally absorb water because ...
The basis of growth involves the following processes except ...
Which of the groups of structures listed below contains chloroplast? ...