BOD stands for __________?
A. Biological Oxygen Decrease
B. Biotic Oxygen Demand
C. Biological Oxygen Demand
D. None of the above
Category: General Knowledge Mcqs
General Knowledge Mcqs are from diffrent sections like sports, geography, improtant days, book authers , atmosphere, events. GK Mcqs. General knowledge mcq for competitive exam , interview and entrance test , Government exams , State and UPSC Civil Services Examinations , PSC, SSC , cgl, ibps,ias,ras , Bank exams and other various exams
What is an Incinerator?
A. Furnace used for burning solid waste
B. Furnace used for treating liquid waste
C. Both a & b
D. None of the above
The aurora is produced by __________?
A. Reflections of sunlight by polar ice fields
B. Fast-moving charged particles colliding with air molecules
C. Burning oxygen caused by the intense sunlight at high altitude
D. The combination of molecular and atomic oxygen to form ozone
E. Scattering of sunlight in the upper atmosphere
Which book written by Rachel Carson resulted in banning DDT in USA?
A. Silent spring
B. The environmentalism
C. Biomagnification
D. Food chain
Continue reading “Which book written by Rachel Carson resulted in banning DDT in USA?”
In the stratosphere, the air temperature normally __________?
A. Decreases with increasing height
B. Increases with increasing height
C. Both increases and decreases depending on the season
D. Cannot be measured
Continue reading “In the stratosphere, the air temperature normally __________?”
Which country contains about 50% of the world’s coal resources?
A. United States
B. China
C. Canada
D. The former Soviet Union
Air pollution can be of __________?
A. natural origin
B. artificial or man made origin
C. both a and b
D. b only
The outermost zone of a biosphere reserve is __________?
A. manipulation zone
B. core zone
C. buffer zone
D. all the above
Continue reading “The outermost zone of a biosphere reserve is __________?”
Black Buck is a __________?
A. Goat
B. Deer
C. Butterfly
D. Bird
