The earth’s first atmosphere was composed primarily of ______________.
A. Carbon dioxide and water vapor
B. Hydrogen and helium
C. Oxygen and water vapor
D. Argon and nitrogen
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
A. Carbon dioxide and water vapor
B. Hydrogen and helium
C. Oxygen and water vapor
D. Argon and nitrogen
A. Carbon dioxide
B. HFC
C. Ozone
D. Water Vapour
A. Water vapor
B. Nitrogen
C. Oxygen
D. Argon
A. Fossil fuel
B. CFCs
C. Oxygen
D. Methane
A. Food
B. Light
C. Oxygen
D. Essential minerals
A. Bee eater
B. Paradise fly catcher
C. Owl
D. The great Indian bustard
A. Sulphuric acid
B. Hydrochloric acid
C. Oxalic acid
D. Acetic acid
A. Nutrients
B. Frost
C. Oxygen
D. Sunlight
A. Nitric
B. Carbon
C. Oxide
D. Sulphur
A. Deforestation
B. Afforestation
C. Overgrazing
D. Removal of vegetation