Human Dependence on Oceans

1. Get out your Journal

2. ​Write at the top "Human Dependence on Oceans"

3. ​You will take notes and be asked questions throughout this presentation (Graded)

​Human Dependence On oceans

• ​REVIEW THIS PHOTO

• THE NEXT SLIDES ARE QUESTIONS ABOUT WHY WE NEED THE OCEAN

• WE DEPEND ON THE OCEAN FOR MANY THINGS ​

Multiple Choice

Humans depend on the ocean for:

• Transportation

• Food

• Oxygen

• Weather

• All of the Above

Multiple Choice

How do the oceans contribute to the amount of Oxygen in the Earth's atmosphere?

• Fish in the ocean produce oxygen.

• Phytoplankton (Plants) in the ocean produce oxygen through the process of photosynthesis.

• Oceans Use Air to grow more water

• Oceans use the pollution from humans to make air

Multiple Choice

How are phytoplankton similar to small trees?

• Both are at the top of the food chain

• Both conduct photosynthesis

• ​REVIEW THIS PHOTO

• THE NEXT SLIDES ARE QUESTIONS ABOUT WHY WE NEED THE OCEAN

• WE DEPEND ON THE OCEAN FOR MANY THINGS ​

Multiple Choice

Which of the following is associated with dead zones in the ocean?

• A decrease in oxygen levels.

• An increase in oxygen levels.

Multiple Choice

Which of the following is NOT a source of pollution in the ocean?

• Fertilizers used on land.

• Emissions from gas-burning vehicles.

• Sand drifting along the bottom of the ocean floor.

• Oils found on city streets.

Multiple Choice

 

How can you help impact the environment in a positive way

• all

• drive less, creating less pollution

• save water

• recycle

Multiple Choice

How do humans destroy reefs?

• Runoff

• Pollution

• Oil Spills

• Overfishing

• All of the above

• One of the few good things we do for the ocean (positive)

• Creation of habitats for fish underwater animals/plants

• Sometimes we sink old boats/cars to be used as artificial reefs

​->Artificial Reefs

Multiple Choice

An artificial reef is a man made structure that may mimic some of the characteristics of a natural reef.

• True

• False

Multiple Choice

What is one way humans are trying to positively impact the ocean?

• Fishing

• Creating artificial reefs

• Drilling for oil and natural gas

• Using Fertilizer on farms

• The process of harming an ocean​ ecosystem by fishing too much

• Negatively effects the biodiversity of an ecosystem, decreasing sustainability

• Also known as the removal of biomass (removing too much fish)​

-> OverFishing

• Runoff is when fertilizer/pollution is carried away from farms/landfills to the ocean

• Causes Algal Blooms where all the water turns green + toxic​

->Runoff/Algal Blooms

​Algal Bloom below

Multiple Choice

What happens when a fertilizer runoff happens?

• Fish get bigger.

• The water becomes very clear.

• Farmers clean the water

• Algae grow rapidly

• The process in which colorful coral sea life turns white due to climate change, pollution, hurricanes, and water temperature​

->Coral Bleaching

Multiple Choice

Coral reefs are endangered by

• climate change

• pollution

• overfishing

• all of the above

Multiple Choice

Coral Reefs provide what to marine life?

• Food

• Oxygen

• Shelter

• Gentle Ocean waves

• All of them

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• F

• G

• H

• J

Multiple Choice

• F

• G

• H

• J