They represent areas of equal pressure<em /><em /> because they are isobars.
Hope that helped you!
The hot and humid climate
I do not believe that a strong nation should be able to boss around weaker nations. This is just wrong in that a nation should be free to decide what it wants to do. A strong nation can assist them in developing. How ever they should not rule them. At that point that weaker nation will be stripped by of their sovereignty. This is not that times of Empires.
These changes in air pressure and wind speed cause<span> warm surface water to move eastward along the Equator, from the western Pacific to the coast of northern </span>South America<span>. </span>