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Chapter 9 - 10 -11

Across
The process of removing salts and other chemicals from seawater
Represents the entire flux of water into the atmosphere
Rapid growth of populations of certain species of algae in lakes or streams caused by elevated amount of nutrients such as nitrogen
High molecular weight metals
The area of land from which rainfall drains into a river or lake
Down
Gases that make up less than 1% of Earth’s atmosphere
Solid carbon particles released during forest fires and the burning of fuelwood that absorb light and warm the atmosphere
A layer of soil or rock that is saturated with groundwater
100000-year-long cycles in Earth’s climate caused by changes in its orbit relative to the sun
A well drilled into a confined aquifer where the groundwater is under sufficient pressure to cause water to rise above the confining layer