Worksheets8th Human Impact Unit 2022
Total questions: 123
Worksheet time: 2hrs 50mins
Modern lifestyles have led to increased demands for a wide variety of consumable products. The packaging of these products has caused environmental problems associated with
food web contamination
urbanization
ozone depletion
solid waste disposal
Human impact on the environment is often more dramatic than the impact of most other living things because humans have a greater
need for water
need for food
ability to alter the environment
ability to adapt to change
In some areas, foresters plant one tree for every tree they cut. This activity is an example of
lack of management of nonrenewable resource
a good conservation practice for renewable resources
a good conservation practice for nonrenewable resources
lack of concern for renewable natural resources
Fertilizers used to improve lawns and gardens may interfere with the equilibrium of an ecosystem because they
cause mutations in all plants
cannot be absorbed by roots
can be carried into local water supplies
cause atmospheric pollution
The tall wetland plant, purple loosestrife, was brought from Europe to the United States in the early 1800s as a garden plant. The plant's growth is now so widespread across the United States that it is crowding out a number of native plants. This situation is an example of
an unintended effect of adding a species to an ecosystem
the results of the use of pesticides
the recycling of nutrients
the flow of energy present in all ecosystems
problem caused by increased levels of CFC's in the atmosphere; living things are exposed to more UV radiation
global warming
thermal pollution
greenhouse effect
ozone depletion
Which of the following is NOT a possible result of decreasing biodiversity?
increased ecosystem stability
extinctions
loss of natural resources
loss of potential foods & medicines
Occurs when nitrogen and sulfur-containing compounds from burning fossil fuels combine with water in the atmosphere
global warming
ozone depletion
acid rain
thermal pollution
Which of the following results when levels of CO2 in the atmosphere increase due to the burning of fossil fuels?
ecological succession
acid rain
ozone depletion
global warming
Which of the following ecological problems is NOT the result of burning fossil fuels?
global warming
ozone depletion
climate change
acid rain
Which of the following natural resources would be described as finite (non-renewable)?
hydro power (ie. Niagara Falls Power Authority)
wind energy
solar energy
fossil fuels
As the human population grows, the demand for natural resources increases. Which activity wastes a natural resource?
riding the bus
keeping the lights turned off
cooling a car or house by opening windows
throwing an aluminum can in the trash
What is the best explanation for the rise in atmospheric CO2 levels since the 1800's?
natural fluctuations of the climate
eruptions of large volcanoes
increased use of fossil fuels by humans
photosynthesis by algae
What will most likely happen if the human population continues to grow at current rates?
There will be an decrease in the number of strong hurricanes
There will be a decrease in water pollution
There will be an increase in nitrogen levels in the atmosphere
There will be fewer natural resources available for future generations
How are humans impacting the levels of salt that are in streams?
Humans are not impacting the levels of salt in streams
Humans are using salt in the food that they make which ends up in the streams through sewage
Humans are using salt to help melt the ice that are on roads and end in the stream through runoff
Humans are using salt to melt ice in the streams and eventually it will end up on the roads
How does plastic effect sea life?
Microplastics create dead zones in the oceans.
Plastics provide habitats for marine life.
Wildlife such as dolphins, seals and seabirds often eat plastic, mistaking it for food.
None of the above
Sustainability is...
how much of a resource that can be used
using up of a resource
making a resource last
reusing a resource
Urbanization is
the process by which human activity and natural process damage land to the point that it can no longer support the local ecosystem.
replacing forests, fields, and grasslands with houses, roads, schools and shopping area.
the growth of urban areas caused by people moving into cities
The process by which wind, water, ice, or gravity transports soil and sediment from one location to another
When human activity and natural process damage land to the point it can no longer support the local ecosystem.
Urbanization
Erosion
Land Degradation
Deforestation
When wind, water, ice, or gravity transports soil and sediment from one area to another it is called
Erosion
Desertification
Deforestation
Urbanization
This image is an example of what type of land degradation
Desertification
Deforestation
Urban Sprawl
Urbanization
This image is an example of what type of land use
Residential
Commercial
Agricultural
Recreational
Land that is kept untouched but is used for hiking and other leisure activities
Transport land
Agricultural Land
Residential Land
Recreational Land
This image is an example of what type of land degradation
Desertification
Deforestation
Urbanization
Urban Sprawl
Land used for business and/or use of natural resources is called
Residential Land
Transport Land
Commercial Land
Agricultural Land
Land use for building homes and small communities
Recreational Land
Residential Land
Transport Land
Commercial Land
Urban Sprawl is
large network of roads and train tracks that connect urban and rural areas across the country
process by which land becomes more desert-like and unable to support life
replacing forests, fields, and grasslands with houses, roads, schools and shopping area.
the process by which human activity and natural process damage land to the point that it can no longer support the local ecosystem.
Land use for roads and train tracks is called
Transport land
Industrial Land
Residential Land
Agricultural Land
True or false: Rural areas have a dense population and many buildings.
True
False
Several factors can lead to land degradation. Which of these activities is least likely to contribute to land degradation?
Urbanization
Deforestation
Poor farming methods
Using an irrigation system on crops
Soil erosion can increase when humans remove trees and other vegetation from an area. What is this process called?
Decomposition
Conservation
Deforestation
Urbanization
Choose the following that describes why land is important to humans . (Choose all that apply)
Fossil Fuels for energy
Nutrients for plants to grow
Buildings
Minerals for Construction
According to the graph, what material’s recycling would reduce the largest portion of America’s trash?
Metals
paper
plastics
Yard trimmings
What is global warming
the normal temperature fluctuations of Earth's climate cycle
the melting of the polar ice caps
the trend of increasing temperatures on Earth
the changes in Earth's biosphere that affect the atmosphere
The threat to biodiversity that occurs when the homes of different species are destroyed
pollution
habitat destruction
overexploitation
climate change
When human-made chemicals and garbage find their way into nature and harm the air, soil, and water it is called
pollution
habitat destruction
overexploitation
climate change
The largest threat to biodiversity is
bacteria
fungi
humans
plants
Look at the diagram of a stream with toxic chemicals. The diagram models how toxic runoff can pollute a stream and also...
create algae blooms.
produce acid rain.
pollute the groundwater.
cause soil erosion.
Burning fossil fuels creates air pollution.
True
False
How does plastic effect sea life?
Microplastics create dead zones in the oceans.
Plastics provide habitats for marine life.
Wildlife such as dolphins, seals and seabirds often eat plastic, mistaking it for food.
None of the above
What will most likely happen if the human population continues to grow at current rates?
There will be an decrease in the number of strong hurricanes
There will be a decrease in water pollution
There will be an increase in nitrogen levels in the atmosphere
There will be fewer natural resources available for future generations
What is the main pollution concern with cars?
air pollution
water pollution
light pollution
Spreading fertilizer on your lawn may be good for your grass but it can be bad for the environment because
it can lead to pollution of nearby soil from animals walking through your grass.
it can lead to pollution from runoff into nearby water sources.
it could seep through the grass into your pipes and into your houses drinking water.
it can pollute the air.
How can humans help the environment become more sustainable?
strip mining
erosion control
wetland development
clear-cutting forests
Which ones of these are sources of water pollution?
wind turbines
industrial waste
chemical runoff
farm pesticides
When we develop areas of land there are consequences. What is a consequence of developing wetlands?
decreased flooding
increased habitats
decreased water quality
increased erosion
What is a potential impact to the environment from urbanization?
acid rain
greater food production
increased water into surface water
warmer temperatures
Desertification is
clearing of trees in a forested area
spread of desert like conditions due to actions of humans
large numbers of people moving to small areas
Deforestation is
clearing of trees in a forested area
spread of desert like conditions due to actions of humans
large numbers of people moving to small areas
Urbanization is
clearing of trees in a forested area
spread of desert like conditions due to actions of humans
large numbers of people moving to small areas
This can happen if we are not careful to what is cut down or moved in our environment because the anchors in the Earth are lost....
erosion
deforestation
urbanization
pollution
Do you recycle?
yes
no
sometimes
rarely
Which of these is not considered ocean pollution?
Dumping garbage
Artificial reefs
Oil spills
Chemical runoff
Which of these human activities most relies on highquality soil?
Hunting
Hiking
Coal mining
Growing crops
A student is hiking through a forest taking pictures for science class. Which picture would most likely be used as an example of human impact on Earth?
A trail built by cutting down tree
A river eroding away the riverbank
A bird nest made of dead branches
A group of butterflies landing on flowers
Which of these activities is most likely to have a positive impact on the environment of Earth?
Expanding neighborhoods
Building factories
Constructing highways
Creating nature preserves
Turning up the volume of radios and televisions will not result in pollution.
true
false
Which of the following activities does not have a negative impact on the environment?
Burning of fossil fuels
Increasing the use of chlorofluorocarbons
Using weedkillers for farming
Planting trees in a nature reserve
We can reduce land pollution by ________________.
A: incinerating rubbish
B: reducing deforestation
C: using organic pesticides in farming
D: building taller chimneys for factories
A only
B and C only
A and C only
A, C and D only
Which of the following are non-biodegradable materials?
A: Wood
B: Plastics
C:Styrofoam box
D: Prawn shell
A and B only
B and C only
B. C, and D only
A, B, C, and D
Species of animals become extinct or endangered due to reforestation.
true
false
Which of the following will lead to fewer deaths of large numbers of animals in an area?
People building homes in a smaller area.
People taking the land to build new houses, causing the animals to lose space to live and find food.
People removing too many nutrients and resources from the land, causing the animals not to have any food.
People polluting the land, causing the animals to get sick.
How have human activities influenced the spread of invasive species?
Human actions are causing the spread of invasive species to new ecosystems.
Invasive species are more controlled due to human actions.
The spread of invasive species is unrelated to human actions.
Invasive species are experiencing high extinction rates due to human actions.
Which human activity has a positive impact on ocean fish populations?
Allowing trash dumping into the oceans.
Improved technology for catching fish.
Allowing fishermen to catch as many fish as possible.
Decreasing the amount of pollution that enters the oceans.
Which of the following is a major way that humans have made water habitats less livable for animals?
Removed habitats to build human settlements.
Altered habitats to create parkland.
Introduced pollutants like fertilizers.
Increased soil erosion.
Which statement about human impacts on other living things is TRUE?
Human activity mostly impacts animal species, but not plants.
The number of endangered and extinct species is increasing because of human activity.
The number of species that are going extinct because of human activity is balanced out by new species being formed.
Human activity has only had a small impact on other species compared to natural causes.
Invasive species are animals that...
take over a new habitat.
destroy human homes.
leave habitats.
destroy their own habitat.
Which of the following statements is FALSE?
Untreated sewage creates pollution because it spreads human waste.
Two sources of pollution from farming are animal waste and fertilizer.
Mining makes the earth cleaner because it removes metals from the ground.
Chemical plants are a big source of water pollution.
Which of these human actions is MOST harmful to a lake ecosystem?
Making rules to limit the amount of fishing in the lake.
Allowing pollution to enter the lake from nearby farms.
Making rules to limit the speed of boats on the lake.
Researching plants and animals that live in the lake.
Which of the following human activities causes loss of soil?
Planting cover crops to hold soil in place.
Moving grazing animals from field to field.
Leaving soil exposed to wind and rain.
Replanting forests.
Which farming practice protects soil?
Irrigating
Fertilizing
Tilling.
Terracing
What is the definition of a habitat?
A natural area that is used for parkland.
A natural area that supports agriculture.
A natural area that is the home of an animal.
A natural area that people live close to.
Which of the following is a result of slash-and-burn agriculture?
Increased numbers of species.
Increased number of organisms that can be supported.
Increased productivity in the surrounding environment.
Increased soil erosion and species loss.
What is the name for substances that people release that cause harm to habitats?
Pollution
Desertification
Deforestation.
Oxygenation
Which of these human activities decreases the amount of land available for other living organisms?
Overuse of fertilizers.
Building increasingly larger cities.
Disposal of industrial waste.
Release of air pollution.
When will the human population become too large to be supported by Earth?
When the number of people exceeds the planet's carrying capacity.
When people have used up all the fossil fuels that provide energy.
When the number of people reaches ten billion.
When people can no longer buy luxury items.
Which practice has had the GREATEST effect on allowing for rapidly increasing human population growth?
More children born to each woman.
Improvements to medicine.
Restrictions on where people can live.
More people owning cars.
Which statement about resource use and population growth in rich nations is TRUE?
Population and resource use is increasing in rich nations.
Population and resource use is decreasing in rich nations.
Population is decreasing and resource use is increasing in rich nations.
Population is increasing and resource use is decreasing in rich nations.
As a growing population demands more energy, which of these changes will result?
The price of oil will decrease.
The amount of carbon dioxide will decrease.
Global warming will increase.
The total amount of oil in the earth will increase.
What is the definition of carrying capacity?
The number of organisms in an environment that will best support biodiversity.
The actual number of organisms currently living in an environment.
The number of organisms in an environment that is needed to provide food for people.
The highest number of organisms that can be supported by an environment.
In general, how has the increasing human population size affected the biodiversity of ecosystems on the earth?
Biodiversity has decreased in a few ecosystems but increased in most.
Biodiversity has decreased in many ecosystems.
Biodiversity has increased in nearly every ecosystem.
Biodiversity has been largely unaffected by the human population.
