A short note on typically groundwater

Typically groundwater is consider of as liquid water flowing through shallow aquifers, however technically it can as well include soil moisture, permafrost (frozen soil), motionless water in extremely low permeability bedrock, and deep geothermal or oil formation water. Groundwater is assumed to give lubrication and buoyancy which let thrust faults to move. Almost any point in the Earth's subsurface has water in it; to some degree (it can be very dry or mixed with other fluids). Groundwater is not restricted or confined only to the Earth, either; subsurface water on Mars is considered to have given rise to some of the landforms.

What do mean by Nomenclature and roads?

The nomenclature used for various types of highways like freeway, expressway, motorway and autobahn; differ between countries or even regions within a country. In several places a highway is a particular type of major road that is distinct from freeway or expressway; in other places the terms could overlap. In law highway may indicate any public road or canal. But, in some countries, the word highway is not generally used at all.
A road is a strip of land, paved, smoothed, or otherwise organized to let easy travel, connecting two or more destinations. Few roads are streets, mainly in urban areas.In the milieu of railways (railroads in American English), a road is a single pathway, which may be part of a multi-track system or could be an isolated line. In the milieu of sea transport, a road is an anchorage to travel.

What Is a Package in Java?

A package is a namespace that manages a set of connected classes and interfaces. Conceptually you can think of packages as being related to different folders on your computer. You can maintain and keep the HTML pages in one folder, images in another, and scripts or applications in however another. Since, the software written in the Java programming language can be composed of hundreds or thousands of individual classes; it makes sense to maintain things organized by placing related classes and interfaces into packages.