Ocean Resources

The extraction of fresh water from salt water is called _____.

• evaporation

• reverse osmosis

• distillation

• desalination

The most important organism on Earth is

• phytoplankton

• zooplankton

• sharks

• whales

How is salt harvested from the ocean?

• Boiling

• Freezing

• Desalination

• Evaporation

Which of the following would probably contain the most mercury?

• A 2 year old bluegill

• A 5 year old catfish

• A 4 year old swordfish

• A 10 year old albacore tuna

About _____% of the garbage in the great garbage patch came from land.

• 20

• 40

• 60

• 80

Which of the following is a problem caused by ghost nets?

• kill fish

• destroy coral

• kill monk seals

• all of these

What has changed about ghost nets that cause them to be more of a problem?

• They’re bigger.

• They’re now made of nylon and don't biodegrade.

• They’re heavier, so they do more damage.

• They’re cheaper, so fishermen don’t care about losing them.

What is the most destructive type of fishing?

• Bottom Trawling

• Pot & Trap

• Purse Seine

• Long Line

Ocean acidification is caused by

• the warming of the oceans

• the toxins released by plastic

• carbon dioxide released by burning fossil fuels

• too much fertilizer washing in from rivers

If humans continue fishing at the current rate, we will run out of fish by the year

• 2030

• 2050

• 2070

• 2100