This chapter is currently out of syllabus
1
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Limit of BOD prescribed by Central Pollution Control Board for the discharge of industrial and municipal waste waters into natural surface waters, is -
A
< 30 ppm
B
< 3.0 ppm
C
< 100 ppm
D
<10 ppm
2
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Montreal Protocol which calls for appropriate action to protect the ozone layer from human activities was passed in the year-
A
1988
B
1986
C
1985
D
1987
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Photochemical smog pollution does not contain-
A
Nitrogen dioxide
B
PAN (peroxy acyl nitrate)
C
Ozone
D
Carbon dioxide
4
AIPMT 2005
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Prolonged liberal irrigation of agricultural fields is likely to create the problem of -
A
salinity
B
Acidity
C
Aridity
D
Metal toxicity
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