As a result of which treaty, ozone hole in Antarctica is slowly healing?
A. Koyoto protocol
B. Ottawa treaty
C. Montreal protocol
D. Oslo Accord
A. Koyoto protocol
B. Ottawa treaty
C. Montreal protocol
D. Oslo Accord
How many meters in one mile?
A. 1409.34
B. 1509.34
C. 1609.34
D. None of Above
A. Treaty among nations to reduce nuclear arsenals
B. Climate control treaty
C. Treaty to protect ozone layer
D. Trade policy about tarrifs
A. 400 to 800 ppm
B. 4000 to 8000 ppm
C. 0.4 to 0.5 ppm
D. 4 to 5 ppm
A. due to presence of dust in air
B. carbon dioxide and water in clouds react to form carbonic acid
C. Ozone depletion
D. All of these
A. Sulphur dioxide
B. Carbon dioxide
C. Nitrogen dioxide
D. CFC’s
A. 550
B. 2500
C. 1,050
D. 10,000
A. 13.82 billion years
B. 4.53 billion years
C. 4.6 billion years
D. 4.53 billion years
A. 62
B. 73
C. 79
D.53