Mughals constantly fought against rulers who did not accept their authority. But as the Mughals became powerful, many other rulers, like Rajputs, joined them voluntarily. What was one of the things that many Rajput lords and kings did to get high positions in the Mughal Empire?

Matrimonial alliance.

Explanation:

The Mughals steadily grew into a strong power with its continous warfare with numerous enemies and empires over time. As the empire grew stronger, many smaller kingdoms and rulers surrendered themselves voluntarily to the Mughals. Eventually many Rajput Kings also joined the empire.

One of the most common practice through which the Rajputs secured alliance and high positions in the Mughal Empire was through matrimonial alliance. Many Rajputs gave their daughters in marriage to powerful Mughal families.

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