I need help who ever gives good explanation will get brainlist

Explanation:

adaptability

man is a social being and has the ability to adapt fast to a new environment

Many studies produce strong evidence that even three to five minutes of contact with nature can significantly reduce stress and have a complex impact on emotions, reducing anger and fear and increasing pleasant feelings. This effect can be achieved by providing: views to the outside, interior gardens or aquariums, or art with a nature theme. The environment can facilitate or discourage interactions among people (and the subsequent benefits of social support). For example, an inviting space with comfortable chairs and privacy can encourage a family to stay and visit with a patient. The environment can influence peoples' behavior and motivation to act. A YouGov poll showed that the number of respondents placing the environment among their top three issues of concern rose from 6% in mid-January to 23% in mid-February. By early April – though the Intergovernmental Panel on Climate Change had just published two massive and horrifying reports – the proportion had fallen back to 11%.

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

a would be the answer