Geo Ch.4 Terms Flashcards
Water table
The groundwater level at which all the cracks and spaces in rock are filled with water
Core
Earth’s center, where pressures and temperatures are very high
Tributary
Any smaller stream or river that flows into a larger stream or river
Humus
Broken-down plant and animal matter in soil
Magma
Liquid rock within Earth
Erosion
Movement of surface material from one location to another by water, wind, and ice
Watershed
The entire region drained by a river and its tributaries
Headwaters
First and smallest streams formed from the runoff of a mountain, eventually forming rivers
Weathering
The process by which rocks break and decay over time
Acid rain
Polluted rain that can damage trees and kill fish in lakes
Leaching
Downward movement of minerals and humus in soils
Soil Salinization
Salt buildup in the soil