1
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Measuring biochemical oxygen demand (BOD) is a method used for
A
Working out the efficiency of oil driven automobile engines
B
Estimating the amount of organic matter in sewage water
C
Measuring the activity of Saccharomyces cerevisae in producing curd on a commercial scale
D
Working out the efficiency of R.B.Cs. about their capacity to carry oxygen
2
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
In an area where DDT had been used extensively, the population of birds declined significantly because :
A
Earthworms in the area got eradicated
B
Cobras were feeding exclusively on birds
C
Birds stopped laying eggs
D
Many of the birds eggs laid, did not hatch
3
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Which one of the following is a wrong statement?
A
Most of the forests have been lost in tropical areas
B
Greenhouse effect is a natural Phenomenon
C
Ozone in upper part of atmosphere is harmful to animals
D
Eutrophication is a natural phenomenon in freshwater bodies
4
AIPMT 2012 Prelims
MCQ (Single Correct Answer)
+4
-1
Gymnosperms are also called soft wood spermatophytes because they lack
A
Cambium
B
Thick - walled tracheids
C
Phloem fibres
D
Xylem fibres
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