You would need to be more specific in what the value 'over 100 dB' is
Answer:
The soil of the region A (given in the attachment) must have coarse grain sand and gravel deposits.
Explanation:
The remaining part of the question is attached here
Solution
Most of the aquifers are recharged by rainfall or either the surface water that penetrates through the soil into the ground and reaches the aquifer. Hence, the soil type in these regions must be permeable. Gravel and coarse sand along with medium seize sand particles have high permeability. Hence, the soil of the region A (given in the attachment) must have coarse grain sand and gravel deposits.
"Exploded", because more people wanted to get work in factories, etc.. and they thought it was a better to work in industries then farming.
conditions were poor in most cases, and that led to the creation of unions in most cases.
Papa Roach.
I used to love these guys!! (: