Many peaks in the himalayas are 7300 meters or more above sea level about how high above indians capital new delhi are these peak

To answer this question we need to know the elevation of New Delhi- that is how high above sea level Delhi is place. It's 200 meters above the Sea Level- a lot less than the Himalayas.

Now we can substract it from the number given:
7300-200=7100, So the answer is that the Himalayas are around 7100 above New Dehli

Answer(a); // soil salinization and waterlogging;

Well, a and b together would be negative. b alone would also be negative.