A Threat To Polar Bears 5.RI.2 and 5.RI.8

Which is a main idea from the text, "Threat To Polar Bears?"

• Polar bears will be extinct by the end of the 21st century.

• Temperatures are rising more quickly.

• Mothers with cubs are unable to produce milk, and the cubs are dying.

• The population of polar bears will be drastically reduced making extinction a real possibility

Which is a main idea from the text, "A Threat To Polar Bears?"

• The bears for many miles in search of their food.

• Bears that are fasting have to wait longer before they can begin hunting because of melting sea ice.

• Due to global warming, warmer temperatures melt the ice, and make it difficult for polar bears to find food.

• The bears lose too much fat reserve. They weigh less and are weak.

Summarize "A Threat To Polar Bears" in a complete sentence.

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Which reasons supports the author's claim that polar bears will soon be extinct due to global warming?

• Rising temperatures make shorter winters, which melt sea ice.

• Cubs are dying because their mothers can't make milk since they can't find food.

• Polar Bears live in the Arctic and hunt the ringed seal.

• As the temperature continues to rise, the cold winter perios with abundant sea ice will be much shorter.

What is the central idea of the text? How do you know? Explain in a complete sentence.

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