WorksheetsHuman Ecological Impact
Total questions: 25
Worksheet time: 25mins
This graph shows the sources of the nitrogen entering the Gulf of Mexico as pollution. What is one conclusion you can make based on the information in the graph?
Nitrogen that comes from the atmosphere is more harmful than nitrogen that comes from crops.
Most nitrogen pollution found in the Gulf of Mexico comes from farming crops.
Corn and soybeans are the only crops associated with nitrogen pollution.
Nitrogen is not a problem in the Gulf of Mexico.
The diagram below shows the relationship between some of the organisms in a marine food web. Which of the following is MOST LIKELY to happen if a large number of phytoplankton are killed from runoff entering the ocean?
The number of porpoises would probably stay the same because porpoises are far removed from phytoplankton in the food web
The number of zooplankton would probably increase because they wouldn’t have to compete with phytoplankton for food.
The number of salmon would probably decrease because there would be less food available for zooplankton and herring.
The Sun would probably not emit as much energy because there would not be as many phytoplankton in the ocean.
Which of the following is associated with dead zones in the ocean?
A decrease in nitrogen levels.
An increase in oxygen levels.
An increase in the number of fish.
Runoff from fertilizers.
Logging operations used to use a technique called clear-cutting, in which all of the trees in an area are cut down. What type of water pollution will this most likely lead to?
Toxic
Sediment
Nutrient
Bacterial
What is one way humans are trying to positively impact the ocean?
Fishing
Creating artificial reefs
Harvesting oil and natural gas
Transporting goods in ocean vessels
A pattern of change after existing ecosystem is destroyed, such as clearing for farming.
Evolution
Secondary Succession
Primary Succession
What is an example of a disturbance that could bring about secondary succession?
Humans cut down many trees in a small region
A volcanic eruption covers a village in lava.
what is the leading cause of deforestation?
Diseases
Housing market
Agriculture and Farming
Paper mill
What are impacts of overgrazing?
pollution and use of more resources
loss of biodiversity, loss of native topsoil, desertification
more people than the infrastructure can support
creation of heat islands
What are some consequences of deforestation?
increased population in cities
building of more infrastructure
soil erosion, loss of biodiversity, loss of ability to remove CO2
more mercury and cyanide released into rivers
Urbanization has a negative impact on:
Biodiversity, pollution, and ecosystems
Biodiversity, ecosystems, and education
Ecosystems, education, and economy
Economy, pollution, and biodiversity
This type of land use allows pesticides to get into our soil, which often end up in our water supply.
Forestry
Mining
Agriculture
Urbanization
What is the definition of Ecological Footprint?
The impact of a person on their neighbors
The impact of a person on the environment
The impact of the oceans towards erosion
How much pollution an animal produces
Which of the following human activities is most likely to lead to habitat fragmentation?
A) Urban development
B) Organic farming
C) Wind energy production
D) Solar panel installation
What is a major consequence of ocean acidification caused by increased CO2 emissions?
A) Enhanced coral growth
B) Decreased fish populations
C) Increased ocean temperature
D) Reduced sea level
Which practice can help mitigate the effects of deforestation?
A) Slash-and-burn agriculture
B) Reforestation
C) Overgrazing
D) Urban sprawl
What is the primary cause of eutrophication in freshwater bodies?
A) Excessive fishing
B) Industrial waste
C) Agricultural runoff
D) Deforestation
How does overfishing impact marine ecosystems?
A) Increases biodiversity
B) Disrupts food chains
C) Enhances coral reef health
D) Reduces water pollution
Which of the following is a direct effect of air pollution on human health?
A) Improved lung function
B) Respiratory diseases
C) Enhanced immune response
D) Increased energy levels
What is a potential ecological benefit of using renewable energy sources?
A) Increased greenhouse gas emissions
B) Habitat destruction
C) Reduced carbon footprint
D) Soil erosion
Which human activity is most associated with the introduction of invasive species?
A) International trade
B) Local farming
C) Urban gardening
D) Domestic tourism
What is a common effect of plastic pollution in oceans?
A) Increased fish populations
B) Enhanced water clarity
C) Harm to marine life
D) Improved coral reef health
Which of the following is a sustainable agricultural practice?
A) Monoculture farming
B) Crop rotation
C) Over-irrigation
D) Pesticide overuse
What is a significant impact of climate change on polar regions?
A) Decreased sea levels
B) Melting ice caps
C) Increased polar bear populations
D) Enhanced ice formation
Which strategy is effective in reducing urban heat islands?
A) Increasing concrete surfaces
B) Planting more trees
C) Reducing green spaces
D) Expanding road networks
