A substance is made up of slow-moving particles that have very little space between them. Based on this information, what can most likely be concluded about this substance?
A. It is not a gas because its particles do not move continuously.
B. It is a gas because its particles move continuously in a straight line.
C. It is not a gas because its particles do not have large spaces between them.
D. It is a gas because its particles move in many different directions.
Answer (3)
Groundwater is formed when water percolates down through the soil.
Groundwater is formed in one of several ways. It can trickle down through the sand and rock from the rain and other types of precipitation. Groundwater can also come from underground streams or rivers or even from the aquifer that is located beneath the rocks under the ground. This water has existed from the beginning of time and moves through a cycle. It evaporates, becomes rain, falls back to the Earth, and then continues into the ground.
Groundwater is formed when surface water infiltrates and percolates down through soil and rock layers, filling the spaces between particles. This water accumulates in the saturated zone of aquifers, which can discharge back to the surface or flow into bodies of water. The process is essential for maintaining freshwater supplies for both human use and ecosystems.
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