Human Impact on the Oceans

What is one of the biggest problems facing oceans today?

• Overfishing

• Pollution

• Climate change

• Coral bleaching

What can overfishing lead to?

• More fish in the ocean

• A loss of biodiversity

• Cleaner water

• Larger fish populations

What causes ocean acidification?

• Increased salt levels

• Carbon dioxide absorption

• Oil spills

• Overfishing

What is a serious concern for people living in low-lying areas?

• Drought

• Coastal flooding

• Earthquakes

• Volcanic eruptions

What is one effect of fertilizers and pesticides on the ocean?

• They clean the water

• They cause large algae blooms

• They increase fish populations

• They make the water colder

What is one way animals are forced to adapt due to climate change?

• By moving to colder areas

• By changing their ways of life

• By becoming nocturnal

• By eating more

What is the effect of carbon dioxide on ocean water?

• It makes the water warmer

• It makes the water more acidic

• It makes the water saltier

• It makes the water clearer

What is coral bleaching?

• The growth of algae on corals

• The loss of color in corals due to algae expulsion

• The increase in coral population

• The formation of new coral reefs

What are artificial reefs?

• Natural coral formations

• Human-made structures to replace coral habitats

• Areas where fishing is prohibited

• Natural underwater caves

What is the purpose of marine protected areas (MPAs)?

• To increase tourism

• To limit fishing and harmful activities

• To build underwater hotels

• To create artificial islands