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Worksheets8.11BC Environment/Oceans
Total questions: 13
Worksheet time: 14mins
Natural Disasters such as, earthquakes, flooding, and volcanic eruptions can cause ...
short term changes
long term changes
What is true about long-term environmental changes?
Many long-term environmental changes are due to predictable weather patterns and happen quickly.
Long-term environmental changes never cause lasting effects in an area.
Many long-term environmental changes affect organisms over many generations.
Long-term environmental changes are usually predictable and easy to avoid.
In a farm ecosystem, a farmer starts using a certain pesticide to protect his crops. A species of cricket is especially susceptible to this pesticide and most of the population dies off. What type of environmental change is this?
It is a short-term environmental change.
It is a long-term environmental change.
It is not an environmental change.
. It is a short-term and long-term environmental change.
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.
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.
What happens to the fish if there is fertilizer runoff?
The fish thrive because of increase in Nitrogen and Phosphorous.
The fish die because of lack of oxygen.
Nothing happens to the fish.
The fish thrive because there is more algae to eat.
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
