Question

How the houses are before 20 years and present now

Answer 1

before 20 years houses are made up of mud and grass and they are too week

but not houses are made up of bricks and cement and they are too strong

Answer 2

Answer:

before 20 years the houses were made of mud and they can not stand against the rains,winds etc

Explanation:

houses nowadays are made up of cement,sand etc and they can easily stand against the rains winds etc they are strong