Question

what were the main features of the subsidiary alliance and the doctrine of lapse​

Answer 1

Explanation:

It began after the stock market crash of October 1929, which sent Wall Street into a panic and wiped out millions of investors. Over the next several years, consumer spending and investment dropped, causing steep declines in industrial output and employment as failing companies laid off workers.

Answer 2

An Indian ruler entering into a subsidiary alliance with the British had to accept British forces in his territory and also agreed to pay for their maintenance. The ruler would accept a British people in his state