Which one is NOT a natural phenomena? a. Tsunami
b. Volcanic eruptions
c. Biological processes
d. Water fountain​

1) name any two states which are leading producer of cotton textile in india 2) wht information technology 3) name any two countries which are leading producers of cotton of cotton textile 4) wht is add to pig iron to convert it into steel

What is the speed of sound in water

Write a short paragraph of about 150-300 words. explain how the physical environment can limit human activities.