Examlex
Why do oppositions of Mars stir such interest among amateur astronomers?
Compact Sediment
Compact sediment refers to sediment that has been compressed over time due to overlying pressure, reducing its porosity and increasing its density.
Groundwater
Water that collects or flows beneath the Earth's surface, filling the porous spaces in soil, sediment, and rocks.
Groundwater
Water that fills the cracks and spaces in underground soil and rock layers, accounting for a significant portion of the Earth's fresh water.
Saltation
A process in which wind-blown or water-borne particles are lifted briefly into the air or water and then settle back down, causing a hopping or skipping motion.
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