River and Stream Processes
What separates a drainage basin of one stream from another?
Divide
How many states are located within the Chesapeake Bay watershed?
6
An area of land covered with water some part of the year.
Wetland
An ecosystem is an area defined by its-
abiotic factors
T or F: Pouring used motor oil on the ground has the largest negative impact on the environment.
True
Why would we measure the pH, temperature, dissolved oxygen, and turbidity of water?
To determine the water quality.
An area of land where precipitation collect and drains off into a common outlet.
Drainage Basin
How much of VA's landmass lies within the Chesapeake Bay watershed?
60%
An area where salt water and fresh water meet and are mixed by the tides.
**DOUBLE JEOPARDY**
How can humans protect water quality?
Conserve and reduce pollutants
This type of pollution enters the water from a specific, identifiable location.
Point source pollution
**DOUBLE JEOPARDY**
As water flow increases, the size of sediment it carries _______.
increases
When sediment and other materials are picked up as water flows towards a body of water, this is called ______.
erosion
What is the largest estuary in the contiguous United States? (Orange County watershed)
Chesapeake Bay Watershed
What would causes a bay to become cloudy?
Increased amounts of sediment
The health of an ecosystem is directly related to what?
Water quality
This type of pollution is not identifiable.
Non Point source pollution
Rivers and streams carry and deposit ______ as they flow.
sediment
**DOUBLE JEOPARDY**
What are three important functions of wetlands?
Wetlands regulate runoff, reduce erosion, maintain water quality, recharge groundwater, and provide food and shelter for many species of wildlife.
Which watershed in Virginia is the largest? (Not the Chesapeake Bay Watershed)
James
What are three examples of biotic factors?
Any plants, humans, animals, fungi, algae, or remnants of what was once living.
If there are too many nutrients in the water, what will be the result?
Excessive growth of aquatic plants and algae
Contamination of soil, water, or air by something harmful.
pollution
What are the flat border areas of rivers and streams called? Water spills out onto these at times of high flow.
The flat border areas of rivers and streams are called flood plains.
**DOUBLE JEOPARDY**
What are the three major regional watershed systems in Virginia?
The three major watershed systems in Virginia lead to the Chesapeake Bay, the North Carolina sounds, or the Gulf of Mexico.
What are three examples of a wetland?
Three examples of wetlands are bogs, marshes, and swamps.
What are three examples of abiotic factors?
water supply, topography, landforms, geology, soils, sunlight, air quality, O2 availability
This federal organization was created to enforce water pollution limits.
Environmental Protection Agency (EPA)
**DOUBLE JEOPARDY**
Name five test that are used to analyze the quality of a water sample.
Turbidity, pH, Dissolved oxygen, Temperature, Salinity