How did the mountain ranges in northern and western regions india remain independent for thousands of years? eign armies?

In vernonia school district v. acton, the school district argued that a drug test was illegal under any circumstances. no student could refuse to take a drug test. drug tests were not given at random. drug testing was necessary to protect all students.

During the cold war, which of the following groups of countries would have all been"behind the iron curtain"

Brainliesttt !me : ) what was the result of indian independence?