week 10

What does the passage say is a major problem for Adélie penguins when nesting?

• They can only lay eggs in winter
• They cannot lay eggs on snow
• They don’t know where to lay eggs
• They prefer laying eggs far from snow

According to the passage, why has the walk for food become harder for Adélie penguins?

• More snow has covered their paths
• There is no food close to the nests
• A large iceberg blocked their route
• They must dive deeper to find food

What happened to the Adélie population at Cape Royds between 2000 and now?

• It grew to over 4,000 nests
• It stayed the same size
• It fell to around 2,100 nests
• It dropped but then grew again

What is one reason Adélie penguins leave their nesting area in February?

• They go to escape predators
• They avoid the darkest time of year
• They go to warmer waters to live
• They look for new nesting areas

Why is Cape Crozier’s penguin population growing?

• Penguins there don’t eat silverfish
• Human activity has reduced predators
• Fishing reduced competition for silverfish
• Adélies at Crozier have more nesting space

What does the passage say about Gentoo penguins?

• They eat only krill
• They live further south than Adélies
• They have a more varied diet
• They are declining faster than Adélies

Why is carbon dioxide harmful to krill?

• It stops krill from being eaten
• It reduces oxygen in the water
• It makes water too acidic for eggs
• It kills krill that eat silverfish

What is the main reason scientists use geolocation sensors on Adélies?

• To study their nesting behavior
• To track their migration patterns
• To keep them safe from predators
• To measure how far they swim

Why are some Adélie eggs abandoned, according to the passage?

• Icebergs cover the nests
• Eggs fall through melting ice
• Parents must leave the nest for food
• Parents forget where the nests are

What helps Adélies avoid predators while feeding?

• They dive under large icebergs
• They swim to warmer waters
• They rely on light to see predators
• They travel with Gentoo penguins