Holt Environmental Science: Chapter 11-Water Cycle

question

surface water
answer

fresh water on Earth’s land surface. is found in lakes, rivers, streams, and wetlands
question

river system
answer

As streams and rivers move across the land, they form a flowing network of water
question

watershed
answer

The area of land that is drained by a river is known
question

groundwater
answer

Water stored beneath the Earth’s surface in sediment and rock formations
question

aquifer
answer

An underground formation that contains groundwater
question

porosity
answer

the amount of space between the particles that make up a rock
question

permeability
answer

The ability of rock or soil to allow water to flow through it
question

recharge zone
answer

The area of the Earth’s surface where water percolates down into the aquifer
question

potable
answer

safe to drink
question

pathogens
answer

organisms that cause illness or disease
question

irrigation
answer

a method of providing plants with water from sources other than direct precipitation
question

dam
answer

structure built across a river to control the river’s flow
question

reservoir
answer

When a river is dammed, an artificial lake, or _____ is formed behind the dam
question

desalination
answer

process of removing salt from salt water
question

water pollution
answer

the introduction of chemical, physical, or biological agents into water that degrade water quality and adversely affect the organisms that depend on the water.
question

point pollution
answer

pollution discharged from a single source
question

nonpoint pollution
answer

comes from many different sources that are often difficult to identify
question

waste water
answer

water that contains waste from homes or industry
question

artificial eutrophication
answer

The natural process of __ is accelerated when inorganic plant nutrients, such as phosphorus and nitrogen, enter the water from sewage and fertilizer runoff
question

thermal pollution
answer

_____ can occur when power plants and other industries use water in their cooling systems and then discharge the warm water into a lake or river.
question

biomagnification
answer

accumulation of pollutants at successive levels of the food chain

Get instant access to
all materials

Become a Member