Importance of the Oceans 7.11B

Open Ended

How do human activities impact ocean systems?

Multiple Choice

What percentage of the hydrosphere's water is salt water found in oceans?

• Most

• Half

• A small portion

• None

Open Ended

In what ways do you think that humans impact the oceans?

Multiple Choice

Which of the following are the main oceans on Earth?

• Pacific, Atlantic, Indian, Arctic, Southern

• Pacific, Atlantic, Indian, Mediterranean, Southern

• Pacific, Atlantic, Indian, Arctic, Mediterranean

• Pacific, Atlantic, Indian, Arctic, Red Sea

Multiple Choice

What percentage of Earth's surface is covered by oceans?

• 50%

• 60%

• 70%

• 80%

Open Ended

How do humans rely on oceans for resources?

Open Ended

What is desalination and why is it important?

Multiple Choice

How do ocean currents influence the Earth's climate?

• They regulate temperature by moving warm water to the poles and cool water to the equator.

• They increase the Earth's temperature by trapping heat.

• They have no effect on the Earth's climate.

• They only affect the climate near the equator.

Multiple Choice

What are some important food sources obtained from the ocean?

• Fish, shellfish, seaweed, and algae

• Chicken, beef, pork, and lamb

• Rice, wheat, corn, and barley

• Apples, oranges, bananas, and grapes

Multiple Choice

What are some products derived from the ocean?

• Medicines, detergents, paints, oil, diamonds, gold, and metal ores

• Clothing, electronics, furniture, and toys

• Books, paper, pencils, and erasers

• Cars, bicycles, airplanes, and trains

Multiple Choice

What is the impact of human activities like overfishing and pollution on ocean health?

• They reduce fish populations and disrupt ecosystems.

• They improve ocean health by increasing biodiversity.

• They have no impact on ocean health.

• They only affect land ecosystems.

Multiple Choice

What are "dead zones" in the ocean caused by?

• Excess nutrients from pollution

• Overfishing

• Climate change

• Natural disasters

Open Ended

How do you think we can reduce pollution to protect ocean ecosystems?

Multiple Choice

What are the hazards of trash in the ocean for marine animals?

• It provides food for them

• It can make them sick

• It helps them build habitats

• It cleans the water

Open Ended

What is aquaculture and how does it impact natural habitats?

Multiple Choice

Which law helps regulate pollutants released into water?

• Clean Water Act

• Endangered Species Act

• Marine Protection Act

• Water Quality Act

Multiple Choice

What are some ways countries protect their coastal waters?

• Limiting resource removal, establishing MPAs, raising awareness

• Increasing fishing activities, building more ports, reducing MPAs

• Encouraging tourism, expanding oil drilling, reducing regulations

• Building artificial reefs, increasing chemical use, ignoring waste

Multiple Choice

How do artificial reefs support marine life?

• They provide feeding and hiding places for fish

• They increase water pollution

• They reduce the number of fish

• They prevent coral growth

Open Ended

How does the ocean affect climate change?

Open Ended

How does the ocean impact the air we breathe?

Multiple Choice

How does the ocean contribute to the oxygen that we breathe?

• Fish produce oxygen through the process of respiration

• Phytoplankton produce oxygen through the process of photosynthesis

• Corals produce oxygen through the process of mineralization

• Phytoplankton produce oxygen through the process of respiration

Multiple Choice

What is the primary type of water found in the hydrosphere?

• Salt water

• Fresh water

• Mineral water

• Distilled water

Open Ended

Describe how human activities impact ocean systems.