Answer: It is an observation which cannot be explained.
12 cm x 2 cm x 3 cm = 72 cm3
You need to say what the statements are if you want this answered.
According to how I understand it ,trees helps to create a visual barrier between the source of the noice and the hearer , it roots helps to reduce the sound waves by absorbing
HEJEGEJDHIEBDJDHDIDGDJGJDHD