SC's Question number - 853 , 854

853). There has been a 30- to 40-fold increase in the incidence of malaria caused by increasing mosquito resistance against pesticides.

(A) increase in the incidence of malaria caused by increasing mosquito resistance against

(B) increase in the incidence of malaria because of increasing resistance of mosquitoes to

(C) increasing malaria incidence because of increasing resistance of mosquitoes to

(D) incidence of malaria increase caused by increasing mosquito resistance against

(E) incidence of malaria increase because of increased mosquito resistance to

854). There is ample evidence, derived from the lore of traditional folk medicine, that naturally occurring antibiotics are usually able to be modified to make them a more effective drug.

(A) are usually able to be modified to make them a more effective drug.

(B) are usually able to be modified to make them more effective drugs

(C) are usually able to be modified, which makes them more effective drugs

(D) can usually be modified to make them a more effective drug

(E) can usually be modified to make them more effective drugs

Answers:

853). OA - B

A- incorrect - Resistance against -- Redundant

C, D, E - incorrect - unidiomatic - 30-to-40 fold increase is the correct idiomatic usage

854). OA - E

A, D - incorrect - antibiotics....a more effective drug

B, C - incorrect - passive - be able to