Moss and lichen begin to grow on land revealed by glacial retreat. Over a
period of years, these plants are replaced by shrubs and then by taller
shrubs.
The ecological process that is occurring is called __________.
...
Moss and lichen begin to grow on land revealed by glacial retreat. Over a
period of years, these plants are replaced by shrubs and then by taller
shrubs.
The ecological process that is occurring is called __________.
ecosystem management
secondary succession
species interaction
primary succession
CONCEPT
Community Ecology
2
Which of the following is a voluntary environmental risk?
Samantha uncovers a wasp nest while painting the eaves.
Duane moves to a city with heavy amounts of air pollution.
Several people fall ill after eating the spinach salad at a restaurant.
Dwight develops cancer after working in the petrochemical industry.
CONCEPT
Risk
3
The Industrial Revolution was a factor in a global population explosion
because as the population increased, cities and their infrastructures grew.
Select one statement that is NOT a result of this change.
New forms of transportation led to new mobility for citizens.
Clean water became less accessible.
Energy was more readily available in cities.
Improved food production fed more people.
CONCEPT
Human Arrival and Expansion
4
Select the energy source that is non-renewable.
A solar farm produces electricity for 2,000 homes.
A dam converts running water into electricity.
A natural gas stove allows chefs to adjust the flame during cooking.
Algae is made into biodiesel.
CONCEPT
Energy
Renewable Energy
Non-Renewable Energy
5
Select the example that describes an environmental cause of
famine.
Local farmers lack the technical expertise to develop new cultivation strategies.
A country's population continues to increase but incomes decrease steadily.
An area is flooded after heavy rains and all the crops are lost.
A corrupt government is overthrown and the country descends into violence.
CONCEPT
World Nutrition
6
Choose the true statement about sources of air pollution in the
United States.
Natural sources of air pollution include household products.
Non-point sources of air pollution are easier to monitor and control.
Stationary sources of air pollution are also point sources.
Mobile sources contribute about half of man-made pollution emissions.
CONCEPT
Air Pollution
7
Choose the statement that is NOT true about water availability on
Earth.
Household consumption of freshwater is greater than industrial consumption.
Agriculture uses the majority of available freshwater.
One-fifth of the Earth’s population lives with a scarcity of water.
Water use has been growing at twice the rate of population.
CONCEPT
Water Availability
8
Choose the statement about the impact of an invasive species that
is NOT true.
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