Yes they do.
Yes
People drill wells to reach fresh water.
Convenience. That way there is always one within reach. To get maximum tightness use two of the 3 holes.
The deepest mines and drill holes are found in the Earth's crust, which is the outermost layer of the Earth. These operations can extend several kilometers into the crust in order to extract minerals or reach deep oil reservoirs.
The deepest mines and drill holes are found in the Earth's crust, specifically in the lithosphere. This layer extends from the crust to the upper mantle and can reach depths of tens of kilometers where mining and drilling operations take place.
Long skinny drill bits are commonly used in woodworking projects for tasks such as creating pilot holes for screws, drilling holes for dowels, and making intricate designs or patterns. They are also useful for drilling holes in tight or hard-to-reach spaces and for creating precise holes for wiring or cables in furniture pieces.
To effectively drill big holes in wood, use a drill with a large bit size and low speed setting. Start with a smaller pilot hole, then gradually increase the bit size until you reach the desired hole size. Make sure to secure the wood properly and use steady pressure while drilling to prevent splintering.
maybe really small insects or birds that can reach past the spines. They live in there to hide from predators and because of the water source. They drill holes in a side and live there.
by concering many other people in the vally of mexico
You would have to drill about 5,100 kilometers below the surface.
by conquering to people in the valley of Mexico
The 'holes' are impact craters. Some of these can reach a depth of 5km.