The housefly can be controlled by which of the following methods?
(i) Bathing regularly
(ii) Spraying of insecticides
(iii) Keeping windows and doors closed
(iv) Elimination of breeding places

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Solution

Answer: (ii) and (iv)
Houseflies can be controlled by the elimination of their breeding places i.e. waste and refuse should be disposed of regularly and in such a way that flies cannot breed on it. Houses and breeding places should be sprayed with insecticides to kill them.

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Q. The housefly can be controlled by which of the following methods?
(i) Bathing regularly
(ii) Spraying of insecticides
(iii) Keeping windows and doors closed
(iv) Elimination of breeding places

The housefly can be controlled by which of the following methods?

Some statements are given, followed by some conclusions. Consider the statements to be true even if they seem to be at variance from commonly known facts. Decide which of the given conclusions follow from the given statements.
Statements:
Some windows are doors.
Some doors are lamps.
All lamps are candles.
Conclusions:
I. Some candles are windows.
II. Some candles are doors.
III. Some lamps are windows.

Statements:

All hammers are stones.

No stone is ring.

Some rings are doors.

All doors are windows.

Conclusions:

I. Some windows are hammers.

II. Some windows are rings.

III. No window is hammer.

IV. Some rings are hammers.

Q. Match the following columns and choose the correct option.

\begin{matrix} C o l u m n - I & C o l u m n - I I I . M u t a t i o n a l B r e e d i n g & P . L a b o r i o u s a n d e x p e n s i v e p r o c e s s t o o b t a i n g e n e v a r i a t i o n . I I . S e l e c t i o n & Q . H y b r i d v i g o u r c a n b e m a i n t a i n e d f o r s e v e r a l g e n e r a t i o n . I I I . H y b r i d i z a t i o n & R . S i m p l e s t a n d e a s i e s t m e t h o d o f p l a n t i m p r o v e m e n t . I V . I n t r o d u c t i o n & S . O l d e s t b r e e d i n g m e t h o d T Q u i c k m e t h o d t o o b t a i n g e n e v a r i a t i o n \end{matrix}

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The housefly can be controlled by which of the following methods? (i) Bathing regularly (ii) Spraying of insecticides (iii) Keeping windows and doors closed (iv) Elimination of breeding places

Answer: (ii) and (iv) Houseflies can be controlled by the elimination of their breeding places i.e. waste and refuse should be disposed of regularly and in such a way that flies cannot breed on it. Houses and breeding places should be sprayed with insecticides to kill them.

The housefly can be controlled by which of the following methods?
(i) Bathing regularly
(ii) Spraying of insecticides
(iii) Keeping windows and doors closed
(iv) Elimination of breeding places

Answer: (ii) and (iv)
Houseflies can be controlled by the elimination of their breeding places i.e. waste and refuse should be disposed of regularly and in such a way that flies cannot breed on it. Houses and breeding places should be sprayed with insecticides to kill them.