What's Killing Killer Whales?

How does boat noise affect killer whales?

• hard to communicate with each other

• hard to make babies

• makes the water temperature too hot

• makes the water temperature too cold

How does less salmon in the water affect killer whales?

• less food for the killer whales to eat

• hard to make babies

• hard to communicate with each other

• makes the water temperature too hot

How do high PCB levels affect killer whales?

• less food for the killer whales to eat

• hard to make babies

• hard to communicate with each other

• makes the water temperature too hot

When did the US ban PCBs

• 1979

• 2019

• 1998

• 2000

Why are whale populations growing in Norway and Antarctica?

• less people = less pollution

• cold water = less pollution

• hot water = less pollution

• more people = less pollution