Fishing out of season

Catching fish faster than they can replenish

Catching fish from the top of the food chain

Catching more fish than what people eat

An increase in the number of fish.

An increase in runoff from fertilizer

An increase in oxygen

A decrease in oxygen

boat anchors that destroy or break the corals.

the gradual warming of the ocean's temperature

irresponsible divers that kick the corals.

All of the above

harmful because it increases competition between coral reefs

harmful because it decreases the likelihood that coral reefs will form in flat, muddy areas

helpful because it offsets the number of coral reefs lost to pollution

helpful because it prevents coral reefs from forming in flat, muddy areas

climate change

overfishing

pollution

all of the above

Microplastics create dead zones in the oceans.

Plastics provide habitats for marine life.

Wildlife such as dolphins, seals and seabirds often eat plastic, mistaking it for food.

Non of the above.

It is a biodegradable material so it eventually disintegrates

It never fully goes away, it just breaks into little pieces

There is no such thing as plastic waste, all plastic is recycled

It is dumped in the ocean for fish to eat

Oceans

Burned for energy

Landfills

Recycled

2030

2040

2050

2025

Fish in the ocean produce oxygen.

Phytoplankton in the ocean produce oxygen through the process of respiration.

Phytoplankton in the ocean produce oxygen through the process of photosynthesis.

Currents move water that heats or cools the atmosphere, around the world.

Ocean waves create winds.

Oceans prevent clouds from forming.

Currents move the atmosphere from place to place.