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WorksheetsHumans Dependence on Oceans
Total questions: 12
Worksheet time: 6mins
People depend on the oceans for __________________.
Natural resources
Food and water
Transportation
All of the above.
How do the oceans contribute to the amount of Oxygen in the Earth's atmosphere?
Fish in the ocean produce oxygen.
Phytoplankton in the ocean produce oxygen through the process of respiration.
Phytoplankton in the ocean produce oxygen through the process of phtosynthesis.
There is no oxygen production in the ocean.
Which of the following is NOT a source of pollution in the ocean?
Fertilizers used on land.
Sand drifting along the bottom of the ocean floor.
Oils found on city streets.
Emissions from gas-burning vehicles.
How do the oceans contribute to the amount of Oxygen in the Earth's atmosphere?
Fish in the ocean produce oxygen.
Phytoplankton in the ocean produce oxygen through the process of respiration.
Phytoplankton in the ocean produce oxygen through the process of phtosynthesis.
There is no oxygen production in the ocean.
Fisheries renew themselves naturally each year, but __________________ has caused a shortage of fish in some areas.
Aquaculture
Fishing regulations
Overfishing
Global warming
The use of light energy by organisms to convert CO2 and H2O into organic molecules is
chemosynthesis
consumption
photosynthesis
decomposition
Corals die because of ________________
boat anchors that destroy or break the corals.
the gradual warming of the ocean's temperature
irresponsible divers that kick the corals.
All of the above
What happens when a fertilizer runoff happens?
Fish get bigger.
Algae grow rapidly.
The water becomes very clear.
The oxygen level in the water increases.
How can you help impact the environment in a positive way
recycle
drive less, creating less pollution
save water
all of the above
Review the graph showing marine fishing rates.If the fishing rate in Asia continues to grow, what will most likely happen as a result?
The fish population will continue to rise.
A wide range in ocean temperatures will be seen worldwide.
The U.S. human population will decline.
The overfishing will cause an imbalance in marine ecosystems.
What is one way humans are trying to positively impact the ocean?
Fishing
Drilling for oil and natural gas
Creating artificial reefs
Transporting goods in ocean vessels
What is a fertilizer runoff?
When fertilizer runs into a body of water.
When water makes fertilizer.
When algae grows rapidly.
The industrial production of fertilizers.
