Nitrogen and oxygen are the main constituents of the atmosphere plus water vapour near the surface. Carbon dioxide is present in smaller amounts butgl of course it can have a profound influence on the climate as global warming has shown, Greenhouse gases include water vapour, carbon dioxide, methane and nitrous oxide.
i think the answer would be "in both eastern and western hemispheres"
D. along rivers and streams
People dress differently to suit the temperature outside.
