Use the map below to answer the following question. The geography of India is uniquely different from the regions that surround it. For that reasons, India is defined as a subcontinent. This caused civilizations in that region to develop differently from those around it. For example, the Indian subcontinent has a much warmer climate than regions that neighbor it just to the north. What about India’s geography is causing this environmental change to happen?

A. Steep mountains in the North act as a natural barrier to cold air from the North

B. Many lakes throughout the country help to cool off the air

C. Oceans in the South means people have a harder time getting to them

D. The sun is physically closer to India than it is in other region

rain should be the answer.

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