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WorksheetsEnvironmental Systems Fall Semester Review 2025
Total questions: 40
Worksheet time: 20mins
Which of the following has the greatest long term impact on birth/fertility rates?
Population size
Women's education
Overall economic prosperity
Legal policies
Which countries have been identified by the UN as having priority for foreign aid for development?
Western, Developed Countries
Eastern, Developed Countries
Undeveloped Countries
Least Developed Countries
An organism that breaks down dead organic matter is called:
A scavenger
A decomposer
A producer
True or False: People in developed nations tend to have larger ecological footprints.
True
False
A population's density describes how:
Old the population is.
Crowded the population is.
Big the population is.
Fast the population is declining.
People moving out of an area, decreasing population is the definition of:
Migration
Immigration
Emigration
Travel
What happens when a population has exceeded its carrying capacity?
The environment can no longer support it.
Immigration occurs.
The birth rate increases.
The death rate stays the same.
Which of the following situations would create an increase in population size?
Low birth rate, low death rate
Low birth rate, high death rate
High birth rate, low death rate
High birth rate, high death rate
An organism that feed on dead material is called:
A scavenger
A decomposer
A producer
Species introduced to regions outside of their historic native range are called:
Indicator species
Keystone species
Apex species
Invasive species
What is lost to the environment between every trophic level?
Nutrients from soil
Living space for organisms
Energy as heat
Food sources
What is the usual sequence for ecological succession starting on bare rock?
Shrubs, lichens, conifers, deciduous trees, grass
Lichens, grass, shrubs, conifers, deciduous trees
Grass, shrubs, lichens, deciduous trees, conifers
Conifers, grass, lichens, shrubs, deciduous trees
The light colored soil beneath the A Horizon is called:
O Horizon
A Horizon
B Horizon
C Horizon
A farmer stops cultivating a large tract of farmland and abandons it. The natural changes taking place soon afterwards, such as the growth of wild grasses and weeds, can be considered secondary succession and not primary succession because
There is already soil present
A new ecosystem develops
The land is not controlled by humans
Wild grasses and weeds make soil from rocks
Which of following biomes is characterized by extremely long periods of drought and animals adapted to avoid the mid-day?
Desert
Tundra
Taiga
Rainforest
Which of the following biomes has animals adapted to camouflage themselves by changing their fur color?
Desert
Grassland
Taiga
Rainforest
The plants of the grasslands must be adapted to deal with what frequent occurrence?
Earthquakes
Fires
Floods
Hurricanes
The relationship between two organisms where both benefit is called:
Mutualism
Commensalism
Parasitism
Which of the following is a biome adapted to frequent rainfall?
Desert
Tundra
Taiga
Rainforest
Integrated Pest Management is a process that uses multiple techniques in order to:
Eradicate pest populations
Control pest populations
Promote pest populations
Eradicate crop populations
The layer of soil that is dark and rich in accumulating organic matter and humus is called:
O Horizon
A Horizon
B Horizon
C Horizon
The relationship between two organisms where one organism benefits and the other is unaffected is called:
Mutualism
Commensalism
Parasitism
Which layer of soil is made up of un-weathered chunks of rock, and is frequently saturated with water?
O-Horizon
A-Horizon
B-Horizon
C-Horizon
Rapid expansion and sprawl of urban areas will result in all of the following EXCEPT:
Farmland being replaced
Traffic congestion
Air pollution
High quality housing
The uppermost layer of soil that consists of organic matter is called the:
O Horizon
A Horizon
B Horizon
C Horizon
A shallow zone in a freshwater habitat where light reaches the bottom and nurtures plants is called:
Benthic Zone
Pelagic Zone
Twilight zone
Littoral Zone
The relationship between two organisms where one organism is harmed and the other benefits is called:
Mutualism
Commensalism
Parasitism
What is the main factor that separates marine and freshwater ecosystems?
Salt content
There's more freshwater than salt water
Nothing can live in salt water
There are no freshwater plants
What type of current is driven by temperature changes and low pressure zones?
Surface Current
Deep Current
Transient Current
Polar Current
Grey Water is defined as:
Waste water from toilets and other sewage.
Waste water from showers, sinks, and cleaners.
Clean water straight from the sink faucet.
Clean water taken from outdoor faucets.
What makes a watershed an open system for nutrients?
Nutrients always return to where they started
Nutrients do not cycle back to their origin
Energy enters as light and leaves as heat
Energy is trapped in the system
What kind of waters are the best environment for coral reefs?
Cold waters around the poles, far from shore.
Cold waters around the poles, close to shore.
Warm waters near the equator, far from shore.
Warm waters near the equator, close to shore.
What is the primary driver of tides?
Rotation of the Earth
Position of the Moon
Earth's orbit around the Sun
Influence of Jupiter and Saturn
A species whose presence or absences gives signs about the health of an ecosystem is known as:
Keystone Species
Apex Species
Indicator Species
Compass Species
What causes the extreme productivity of estuaries?
A lack of nutrients in the water where the river meets the sea
High levels of nutrients being trapped where the river meets the sea
Presence of a barrier island boosting the rate of erosion
Frequent fires the add nutrients back into the soil.
Marshes are dominated by what type of plant life?
Mosses
Grasses
Trees
Shrubs
An area of land that drains water, nutrients, and sediment to a common end point is known as a:
River
Riparian Zone
Watershed
Upland Area
What makes up the greatest household water usage?
Shower
Toilet
Outdoor
Clothes washer
How is a tsunami different than a regular wave?
Tsunamis are caused by the gravitational pull of the moon, while regular ocean waves are caused by wind.
Tsunamis only occur in deep ocean waters, while regular ocean waves are found in shallow coastal areas.
Tsunamis are typically generated by undersea earthquakes, whereas regular ocean waves are caused by the gravitational pull of the moon.
Tsunamis are formed in lakes and rivers all over the world, but regular waves are only in the ocean.
Where do earthquakes most commonly occur?
Along the coastal reefs.
At the edges of tectonic plates, along plate boundaries.
In areas with high elevation, such as mountain ranges.
Only in regions with active volcanoes.
