Q. Why air is not a Homogeneous Mixture , As it is evenly distributed through out the Atmosphere . Where as ICE is said as Homogeneous , but ICE has molecules as well as Chemical Combination . It cant be Categorized in the Group Of Mixtures ( as a Homogeneous ) ?
(a) Which gas in the atmosphere is utilised by the trees and plants in photosynthesis ?
(b) Which gas in the atmosphere traps the heat rays reflected by the earth ?
Large-scale deforestation leads to a decrease in the amount of gas A in the atmosphere whereas the amount of gas B increases. The increased amount of gas B in the atmosphere causes an effect C which leads to excessive heating of the earth and its atmosphere producing an undesirable phenomenon D. What are A, B, C and D?