Answer:
do u still need help?? just comment oki?
Explanation:
The Earth has an outer solid layer called the crust, a highly viscous layer called the mantle, a liquid layer that is the outer part of the core, called the outer core, and a solid center called the inner core. ... The crust is the outermost layer of the Earth. It is made of solid rocks.
Answer:
The open cavities and caves of limestone aquifers.
Explanation:
This is In general where Aquifers occur may help you