7.11B Human Impacts on Ocean Systems

Is the following an example of a positive or negative impact on the earth's ocean systems?

Warmer global temperatures have caused glaciers to melt resulting in higher ocean levels which displace humans and destroy wetlands.

• Positive Human Impact on Ocean Systems

• Negative Human Impacts on Ocean Systems

Is the following an example of a positive or negative impact on the earth's ocean systems?

The great pacific garbage patch collects trash from our oceans currents from around the world.

• Positive Human Impact on Ocean Systems

• Negative Human Impacts on Ocean Systems

Is the following an example of a positive or negative impact on the earth's ocean systems?

Artificial reefs placed on the seafloor enhance marine life by creating new reef habitats.

• Positive Human Impact on Ocean Systems

• Negative Human Impacts on Ocean Systems

Is the following an example of a positive or negative impact on the earth's ocean systems?

Warmer ocean waters create more frequent and stronger storms

• Positive Human Impact on Ocean Systems

• Negative Human Impacts on Ocean Systems

Oceans contain ___% of Earth's Water

• 100%

• 97%

• 75%

• 85%

Is the following an example of a positive or negative impact on the earth's ocean systems?

Commercial fishing nets often times scrape the seafloor scooping up everything in its path. Dredge fishing destroys habitat and kills bycatch (fish, sharks, and other marine life caught unintentionally).

• Positive Human Impact on Ocean Systems

• Negative Human Impacts on Ocean Systems

Is the following an example of a positive or negative impact on the earth's ocean systems?

Educating the public helps communities generate interest and engages the public which results in awareness, knowledge, and understanding of the importance of our ocean systems.

• Positive Human Impact on Ocean Systems

• Negative Human Impacts on Ocean Systems

What is the best way to combat over fishing?

• Limit fishing activity.

• Don't buy fish.

• Don't eat fish.

• Go vegan.

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.

Oceans cover ___% of Earth surface

• 50%

• 60%

• 70%

• 97%