Answer:
Water vapor is less dense than these heavy molecules; in humid air, water vapor takes up space that would normally be occupied by nitrogen and oxygen. Known as the "vapor buoyancy effect," this phenomenon renders humid air lighter than dry air of the same temperature, pressure and volume.
A. Immigrants learned English
Explanation:
<u>Hull House was man Immigration officer run up unit last century where the population was asked to be from a different sort of control</u> and not come out of a determinant as bad as the room freshener or something and studies.
<u>The Hull house thus gives a sense of things that a human may not may not have outgrow</u>n. it is imperative to offer them the membership first.
Allowing arms to be transported to China on British ships
So they can get more land and be making more money