Human Impacts on Oceans

humans

marine animals

neither

humans and marine animals

MORE

LESS

Stop overfishing

recycle/lower pollution

travel to another country

stop tsunamis

add water to the oceans from our lakes.

TRUE

FALSE

have roots and stems

can photosynthesize

have green leaves

Plants bloom early down stream

Water becomes cloudy

Too much of nutrients

Extremely rapid growth of algea

A reduction of oxygen levels in the water.

Water that can support more life.

Waters that are deadly for animals

An increase in oxygen levels.

The ocean contributes to the world economy by supporting fisheries, tourism, shipping, and natural resource extraction.

The ocean controls CO₂ levels by absorbing it from the atmosphere and storing it through plant photosynthesis.

The ocean only absorbs CO₂ from underwater volcanic activity.

The ocean has no effect on CO₂ levels in the atmosphere.

The ocean releases CO₂ into the atmosphere during storms.

Temperatures on Earth would be more extreme without oceans due to the lack of heat regulation through ocean currents.

Plastic pollution helps turtles build their nests.

Plastic pollution provides nutrients for turtles.

Plastic pollution has no effect on turtle behavior.

Plastic pollution can block stomachs and cause toxic exposure in turtles.

Excess CO₂ increases ocean temperatures, promoting coral growth.

Excess CO₂ has no effect on ocean life or ecosystems.

Excess CO₂ leads to clearer waters, benefiting marine visibility.

Excess CO₂ causes ocean acidification, harming marine life and ecosystems.