Water
__________ percent of the water on Earth is salt water.
97.5%
The process of moving water from its source to places we can use it is known as _________ ________.
Water Diversion
Leaking storage tanks underground can be considered _________ ________ pollution.
Ground water
foreign substance found in the environment that can cause illness or disease
Contaminant
pollution caused by disease causing organisms such as bacteria and viruses
biological
Of all the fresh water on Earth, only __________ percent is on the surface
1%
Dams are utilized to regulate the flow of water throughout the year by creating __________.
Reservoirs
Excess fertilizers running off the surface ending up in bodies of water is can be considered ________ pollution
Nutrient
area of a body of water where no life exists due to excess pollution
Dead zone
water that naturally flows from the ground
Spring
Water is considered a renewable source because of the ________ _________.
Hydrologic cycle (water cycle)
The major categories of water usage include personal, agricultural and _________.
Industrial
Sediment pollution can occur due to natural processes such as _______ and can be accelerated by human activities.
Erosion
any area through which water cannot pass
Impermeable
method of conserving water by landscaping with plants that require little or no watering (spelling counts)
Xeriscaping (it doesn't actually count)
All of the land that contributes to a river system is called a ___________.
water shed
In the US, most of the water that we use comes from ________.
Aquifers
_________ __________ pollution can occur from industrial or agriculture practices discharging organic or inorganic waste.
Toxic-chemical
having spaces or pores through which water or other substances can pass
Permeable
any area where surface water soaks into the ground and reaches an aquifer
recharge zone
The boundary between the zone of aeration and the zone of saturation is the _________ ________.
Water table
Ground water is most commonly used for _________.
Irrigation
___________ pollution occurs when industrial wastes are discharged into water and its temperature raises.
Thermal
a disease-causing organism
Pathogen
Soil that enters a body of water as a result of erosion
Sediment