Hydrogen is in a state of matter as a gaseous form. (so the answer is gas)
Diffusion , the movement of gas molecules .
"Social Darwinism<span> is a modern name given to various theories of society that emerged in the United Kingdom, the United States, and Western Europe in the 1870's, and which are claimed to have applied biological concepts of natural selection and survival of the fittest to sociology and politics", so, in therory, it would allow AND promote imperialisim, as many people are not within the same level of society.</span>
Tge system that coirdinate and send message to the body is the nervous system
