In a residential house along a highway an effective strategy to control noise level is to
A. Construct boundary wall around the house
B. Placing metal sheets all around the house
C. Planting thick bushes all around the house
D. Planting trees around the house
Answer:C
In a residential house along a highway an effective strategy to control noise level is to
A. Construct boundary wall around the house B. Placing metal sheets all around the house C. Planting thick bushes all around the house D. Planting trees around the house