Ground water is water which is located below the soil surface and contained in the pore spaces of bedrock, sand, gravel, and other such materials.
the researchers concluded that more water probably exists deep within the Earth than is present on Earth's surface—as much as five times more.
Most ground water originates from precipitation that soaks into the ground. The ground water system as a whole leads the water in the general direction of the ocean.
The water table is the surface where the water pressure head is equal to the atmospheric pressure. It may be conveniently visualized as the "surface" of the subsurface materials that are saturated with groundwater in a given vicinity.
She was unconscious before the incident so something must have happened before it, also the bruise could result in brain damage.
Answer: North America
Explanation: About 80 million years ago, North America and Europe, Australia and Antarctica, and India and Madagascar followed suit and separated. Over millions more years, the continents moved to their approximate current positions.
Answer:
New species can appear gradually through small changes in an ancestral species.
Explanation:
The new species that appear are due to hereditary variations that occur in a population. The adaptive variations are said to confer a selective advantage to organisms possessing them. The result of variations is that well adapted individuals are able to survive and reach the reproductive age and pass over their favourable characteristics to their offspring.
