Recognize human dependence on ocean systems and explain how human activities such as runoff, artificial reefs, or use of resources have modified these systems.
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Q 1/2
Score 0
Which of these human activities is most likely to cause the excessive growth of phytoplankton in the world’s oceans?
60
The use of chemical fertilizers that are carried by runoff into rivers
The spraying of chemical herbicides that reduce carbon dioxide in the air
The mining of fossil fuels, which requires digging underground tunnels
The logging of old-growth forests, which results in erosion
Q 2/2
Score 0
A coastal area that once supported a thriving fishing industry is overfished. The number of species found living in the marine ecosystem decreases. Which of these activities is most likely to increase the natural biodiversity in the area?
60
Introducing non-native species to fill unoccupied habitats and banning fishing
Eliminating non-native species and encouraging fishing for large predatory fish
Building artificial reefs and increasing fishing activity
Building artificial reefs and limiting fishing activity
2 questions
Q.
Which of these human activities is most likely to cause the excessive growth of phytoplankton in the world’s oceans?
1
60 sec
8.11c
Q.
A coastal area that once supported a thriving fishing industry is overfished. The number of species found living in the marine ecosystem decreases. Which of these activities is most likely to increase the natural biodiversity in the area?
