What is the concentration of gaseous CO_(2) in the atmosphere?
What is the source of radioactive CO_(2) in the atmosphere?
Name the first oxygenic photoautotrophic organism. What was the effect of evolved oxygen on atmospheric gases of reducing atmosphere of that period ?
The correct percentage of CO_(2) in atmosphere is
Which of the following process (es) release CO_(2) n atmosphere ?
Excessive release of CO_(2) into the atmosphere result in :
Statement-1: Presence of excess of CO_(2) in atmosphere can increase the temperature of earth's atmosphere and Statement-2: CO_(2) is colourless and odourless gas.