German sociologist georg simmel argued that shifts in the environment affecting substantial portions of the population consequences on the ways that individuals act and interact.

Have

Explanation:

Georg Simmel argued that the way people behave with one another is not only influenced by the personality of the people, but also the resources that available around their environment.

For example,

In an environment with abundance of food and water source, it is much easier for people to live peacefully with one another. This happen because they will less likely see other people as a threat to their survival, since they can easily find other foods source in case another group somehow take the one that is near them.

But this will not be the case in an environment with lack of food and water source.

The scarcity of the resources make the people become much more competitive to get the available resources. This will increase the likelihood of conflict with other groups and most likely make them act negatively toward each other.

answer; collective security;

question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals