Ocean dependence Flashcards
What does the ocean regulate
Earths climate
The ocean has biomedical organisms that help fight what
Disease
Phytoplankton is the basis for what food chain
Marine food chains
Phytoplankton accounts for what percent of the worlds oxygen
90%
Humans demand for what is putting the ocean at risk
Resources
Define habitat
Where an organism lives
What is lost when a habitat is destroyed
Biodiversity
How many acres of sensitive habitats disappear each year?
20,000 acres
Paved surfaces help create expressways for ______,_________,and _________ into costal waters
Oil, grease, toxic pollutants
What do wetland filter
Pollutants from the water
What do wetlands store
Ground water
What is happening to the ocean water
It is becoming more acidic
What are the 3 main threats to coral reef destruction
Pollution, overfishing, climate change
What 3 things have pollution affected
Air, water, soil
What percent of earths water is drinkable
3%
Point source pollution
Comes from one single or easy traced point
Non point source pollution
When most pollution comes from many places rather then a single point
What percent of coastal rivers and bays are degraded by nutrient( fertilizer) runoff
60%
3 main ocean pollutants
Trash, sludge dumping, oil spills
Salmon and ground fish are being ……
Overfished
What percent of fish populations are being overfished
30%
Who do oil spills harm
Marine animals
Define alien species
Organism that makes a home for itself in a new place; no predators and grow quickly
What can alien species drive out
Native species from their natural habitat
Biodiversity protects the quality of(2)
Air(ozone layer) and marine biodiversity
What type of rays does biodiversity protect
Ultra violet rays(UV rays)
When was the Marine protection, research, and sanctuaries act passed
1972
What is the Marine protection, research, and sanctuaries act
Prohibited dumping of material that would negatively affect human health, marine environment, or businesses
Artificial reef
Attempt to restore coral reef
Are artificial reefs man made
Yes they are man made
Name 4 materials used in reef building
Boulders, tanks, bridges, oil rigs
Why are artificial reefs designed
Provide hard surfaces so things can attach and provide food and structure for fish
When did japan build artificial reefs
1950s
Why did japan make artificial reefs out of
Made out of concrete and is a tourist attraction
What does the ocean remove from the atmosphere
It removes carbon from the atmosphere providing oxygen
