CFC releases a chemical which is harmful to ozone is ____________.
A. chlorine
B. fluorine
C. N2O
D. SO2
Category: Environmental Science
Environmental science MCQ is the section of General knowledge MCQ Questions for all exam like 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
The relationship between nitrogen fixing bacteria and leguminous plants is an example for ____________.
A. Parasitism
B. Predation
C. Mutualism
D. Commensalism
The green house gases, otherwise called radioactively active gases includes ____________.
A. Carbon dioxide
B. CH4
C. N2O
D. All of these
Birth rate is called ____________.
A. mortality
B. vital index
C. natality
D. viability
Energy flow in ecosystem is ____________.
A. Unidirectional
B. Bidirectional
C. Multidirectional
D. None of the above
Assuming that the night will remain clear, calm, and unsaturated, the predicted minimum temperature is 32oF. Suddenly the wind speed increases and remains gusty throughout the night. The minimum temperature will most likely be ____________.
A. About the same as predicted but will occur earlier in the night
B. Higher than predicted due to the release of latent heat
C. Much lower than predicted due to radiational cooling
D. Higher than predicted due to mixing
An association between two individuals or populations where both are benefitted and where neither can survive without the other is ____________.
A. competition
B. commensalism
C. mutualism
D. protocoperation
The carrying capacity of a population is determined by its ____________.
A. population growth rate
B. natality
C. mortality
D. limiting resources
Salmonellosis is a disease related to consumption of ____________.
A. Chicken
B. Eggs
C. Mutton
D. Fish
In July, at middle latitudes in the Northern Hemisphere, the day is ____________ long and is ____________ with each passing day.
A. Less than 12 hours; getting longer
B. Less than 12 hours; getting shorter
C. More than 12 hours; getting longer
D. More than 12 hours; getting shorter
