The presence of which is necessary for photosynthesis?
A. Chloroform
B. Chlorophyll
C. Phosphorus
D. Polymer
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
Eutrophication results from ____________.
A. Agricultural and sewage water
B. Vehicle exhaust
C. Pesticides
D. Industrial effluents
Nuclear accidents mostly release radioactive _____________ into the atmosphere.
A. Carbon
B. Iodine
C. Phosphorus
D. Sulphur
Earth summit was held in ____________.
A. Stockholm in 1972
B. Rio de Jeneiro in 1992
C. Paris in 1992
D. New York in 1972
Natural earthquakes are caused by ______________.
A. Earth’s crust
B. Deep seas
C. Peak mountains
D. Forests
Mycorrhiza represents ____________.
A. Symbiotic association between a fungus and liverworts
B. Parasitic association between a fungus and an alga
C. Parasitic association between a fungus and roots of plants
D. Symbiotic association between a fungus and roots of higher plants
Grassland of USA is referred to as ____________.
A. Prairies
B. Steppes
C. Pampas
D. Veldts
The unit of measurement of intensity of sound is in ______________.
A. Decibels
B. Lux
C. Parsec
D. Candela
Which of the following interactions will not promote co evolution?
A. Commensalism
B. Mutualism
C. Parasitism
D. Interspecific competition
The gas responsible for the greenhouse effect on Venus is ____________.
A. Carbon dioxide (CO2)
B. Oxygen (O2)
C. Ozone (O3)
D. Nitrogen (N2)
E. Water vapor (H2O)
