Natural, it is not man made.
A topographic map displays sea level readings for different locations.
ex. color shows depth
Well this is basically how I would explain this to him
There is really no reason to be worried this isn't a good thing but it ie also not a bad thing either basically the earths atmosphere is changing and the titonic plates are moving so the earths crust will recreate new states and make more islands like hawaii
Monsoon is known as unifying bond because of the following reasons:
1) The peninsular plateau, under influence of the sea from three sides, has moderate temperatures.
2) The effect of monsoon on the Indian subcontinent is quite perceptible. The seasonal alteration of the wind systems and the associated weather conditions provide a rhythmic cycle of seasons.
3) The people of India especially the farmer from north to south and from east to west, eagerly await the arrival of the monsoon. These monsoon winds bind the whole country by providing water to set agricultural activities in motion. The river valleys which carry this water also unite as a single river valley unit.