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WorksheetsWatersheds Review
Total questions: 46
Worksheet time: 25mins
Some of the rivers that flow through the Roanoke River Watershed into the Roanoke River include Little Otter RIver, Big Otter River, Blackwater River, Pigg River, Dan River, Smith RIver and Banister River. These are the of the Roanoke River.
Tributaries
Drainage Basins
Branches
Divides
The Chesapeake Bay’s biggest problem is “nasty” runoff. What are the 3 biggest concerns affecting the bay? Choose ALL correct answers.
Excess nutrients
Too many underwater grasses
Sediment from erosion
Toxic substances
Overpopulation of wildlife
The land area that supplies water to a river system is called a -
Watershed
Tributary
Divide
Stream
What is the largest watershed in Virginia?
Atlantic Ocean Coastal Watershed
The Pacific Ocean Watershed
The Gulf of Mexico Watershed
The Chesapeake Bay Watershed
Fertilizers and sewage _____ the water supply.
pollute
clean
remove salt from
Help
Select 3 states that make up the Chesapeake Bay Watershed.
Delaware
New Jersey
Pennsylvania
Kentucky
New York
The large amounts of nutrients in the water causes excess algae to grow then die off which leads to ___ levels in the bays.
low oxygen
high nitrogen
low hydrogen
high oxygen
Select 3 states that make up the Chesapeake Bay Watershed.
Virginia
Tennessee
Maryland
West Virginia
The land area that supplies water to a river system is called a -
Watershed
Tributary
Divide
Stream
What happens first when bay waters become turbid from excess sediment?
Flooding increases
The sun can’t shine through, and the sub-aquatic plants die off
The crabs are forced to leave because of anoxia.
The algae begin to overgrow caused by eutrophication
The dotted line marked Y, separates the land that drains into River A from the land that drains into River B. It would be called a(n)–
Levee
Drainage Basin
River System
Divide
Which of these is NOT one of the major watershed systems of Virginia?
The North Carolina Sound
The Tennessee Sound
The Chesapeake Bay
The Gulf of Mexico
What is the water supply?
All of the water on Earth
All of the water available to humans
All of the water in the oceans
All of the freshwater on Earth
As the world's water crisis gets worse, which of the following does NOT increase?
The number of water consumers
The supply of freshwater
The price of water
Land disputes over water supplies
The best tool to use in testing the turbidity of a particular body of water is —
Secchi Disc
A dissolved oxygen probe
Litmus paper
A Celsius Thermometer
Water is used as a coolant by power plants and industrial manufacturers. Where water used as a coolant is returned to the natural environment at a higher temperature. What type of pollution is actually caused by nuclear power plants?
Thermal
Noise
Radioactive water
Acid Rain
What is a form of thermal pollution?
When global warming heats up a body of water
When organisms overpopulate and warm the water through their body heat
When heated water is released from factories or power plants
When the ocean waters are warning in the summer
Rivers, lakes, aquifers, and reservoirs make up what percent of all the water on the planet
97%
70%
3%
1%
Specific sources of pollution that can be identified, like discharge from a pipe at a sewage treatment plant or an oil tanker spill in the Gulf of Mexico, are called ___ pollution.
Point Source
Non-Point Source
Run-off
Sewage
The biggest problem affecting water quality in the Chesapeake Bay is
man-made dams
polluted run-off
man-made channels
hunting and fishing
One way that water quality can be determined is to look at the type and number of organisms living in the water. What other measurements should you take when determining water quality?
Temperature, length, turbidity, pH
Temperature, density, pH, turbidity
Turbidity, mass, temperature, pH, salinity
Turbidity, temperature, salinity, pH
Why is it important to protect watersheds and conserve water resources?
Water remains clean even if the land area around it is polluted.
Fresh water is abundant everywhere on Earth.
Water is hard to pollute and very easy to clean.
All living things depend on clean water.
When monitoring the water quality of a freshwater stream, which of the following factors would you be the least likely to measure?
Flow
Temperature
pH
Salinity
An area of land that is covered with a shallow layer of water during some or all of the year is called a -
Watershed
Wetland
Delta
Drainage Basin
Select all the abiotic factors that could affect an ecosystem.
Trees
A Factory
Animals
Sunlight
Trash
Select all statements that are true regarding estuaries.
It is okay to dump trash in an estuary.
Freshwater and saltwater mix in an estuary.
The Chesapeake Bay is the largest estuary in the contiguous U.S.
Very few organisms live in an estuary.
Estuaries provide habitat for many living things.
Select all the biotic factors that could affect an ecosystem.
A Factory
Trees
Animlas
Pesticides
Humans
The Chesapeake Bay is ___ because it is an enclosed body of water where freshwater mixes with salty ocean water.
a Wetland
a Watershed
an Estuary
a Tributary
Washing away of the land by the water as it flows by is called -
groundwater
deposition
sediment
erosion
The wetland ecosystem that has very acidic water and plants know as peat moss is called a -
bog
mangrove forest
swamp
freshwater marsh
What are the three types of freshwater wetlands
Bog
Mangrove Forest
Swamp
Marsh
Salt Marsh
Due to the seasons, the water level of a wetland -
Stays the same all year
must be at least 1 meter deep
can change throughout the year
is too deep to walk through
What is the largest estuary in the United States?
The Gulf of Mexico
The North Carolina Sound
The James River
The Chesapeake Bay
The Big Sandy and New Watersheds drain into what larger regional Watershed?
The Chesapeake Bay
The North Carolina Sound
The Gulf of Mexico
What is our local watershed in the Hampton Roads area?
The York River Watershed
The Rappahannock River Watershed
The James River Watershed
The Potomac River Watershed
What US governmental agency protects human health and the environment by setting water quality rules and regulations?
WaterAid
UNICEF
Department of Interior Landscaping
Environmental Protection Agency (EPA)
Which of the following is NOT a natural filter in the Chesapeake Bay?
Shellfish
Algae
High Grasses
Leaves on the ground
What human activity improves the conditions of the wetlands?
Paving over areas in or near the wetlands
Creating green spaces in the surrounding community
Cutting down trees for commercial use
Fertilizing farms
Increased urban development along the shorelines by draining and paving over wetlands for commercial uses can -
protect the coastline from hurricane storm surges
provides more land for birds to breed
increase the speed and amount of runoff into rivers, bays, and oceans
decrease the chances of severe flooding
Which of the following is TRUE about wetlands?
Wetlands are not in danger from human activities, so we don’t need to protect them.
Wetlands are a great resource, but there is nothing that can be done to protect them.
Wetlands are an important resource that we should protect.
Wetlands are an ecosystem in which the roots of the plants are submerged under water at least part of the year.
The wetland biome includes swamps, bogs, and marshes.
True or False: Wetlands play no role in reducing pollution in a watershed.
True
False
Wetlands play an important role in all of the following EXCEPT -
providing breeding grounds for a variety of organisms
filtering pollutants out of the water
increasing weathering and erosion
increasing the local economy
Bodies of water in wetlands often neutralize foreign substances. What does this mean?
The water makes potentially dangerous substances even more dangerous.
The water turns foreign substances into food.
The water makes potentially dangerous substances harmless.
The water increases the amount of unfamiliar substances.
What do you call the condition of water when the oxygen levels reach such an extreme low that aquatic animals are forced to either flee or die?
Anaerobic
Biotic
Abiotic
Hypoxic
Flowing water is slowed down in wetlands where it flows around plants. What do the plants remove from the water in this process
Carbon and iron
Carbon and hydrogen
Nutrients and pollutants
Thermal pollution and smog
What is the main difference between a swamp and a marsh?
A marsh is flooded grassland and a swamp is flooded woodland.
A marsh is an overgrown lake and a swamp is flooded grassland.
A marsh is flooded woodland and a swamp is flooded grassland.
A marsh is flooded grassland and a swamp is an overgrown lake.
