G(x) is f(x) translated down 16 units.
These subs are useful in studying the ocean floor, where it is so deep that divers would be crushed by the water pressure. For example, research submersibles are used to study shipwrecks like the RMS Titanic.
I think the correct answer would be A. A normal cultural characteristic of rural areas would be having strong family values. Rural areas are areas where there are few homes and infrastructures and the distance for each buildings are more or less far from each other. This would mean that families tend to be more close to each since they are able to communicate to each other frequently.
The answer is A natural boundary
