Question

which one brings a sudden change in the environment
a) formation of a river
b) rainfall
c) growth of a plant
d) formation of mountain
​

Answer 1

Option-b

Rainfall

Rainfall brings a sudden change

in the environment because the

rain makes the roads to fill with

water and even sky colour

changes from blue to blackish

colour

EXPLANATION:-

Formation of river helps people

to get water but it don't make a

sudden change

growth of plants helps to get

oxygen but it don't make a

sudden change

formation of mountain helps in

avoiding the cooler winds and

heavy rains but they don't help

instantly , when we get rains or

any winds, we can observe the

change

Answer 2

In the course of evolution

Rainfall play a major role

Due to heavy rainfall water get collect in sea and the life arose from water

so your answer will be Rainfall