The railroad tracks are parallel, because they go the same direction and don't intersect
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.
well <span>It's because sunlight hits the equator more directly throughout the whole year. Sun equals life. so therefore the equator have more vegetation and and warmer climate and thus it has more life than Canada which is at higher latitudes where it is cold most for a large part of the year.</span>
16TH PRESIDENT ABRAHAM LINCOLN