Read the text below to answer question no 27-33

My uncle is a zoo keeper. His job is to keep a polar bear named Kuma.

Kuma is a kind of bear. It is a mammals. It is very big bear. It is weighing at 680 kg and heaight at 2.5 m long.

Kuma has a long neck, small head, short and round ears, short tails and sharp claws. It has 42 teeth.

Like the other polar bear, Kuma has bubbler (layer of fat) under its skin to make it warm. It may look white but actually has black skin with transparent fur. They looks white because of the reflection of light and it helps polar bear blends with the surrounding.

Kuma is a carnivore. It eats mainly seals. But sometimes other animals like fish or small mammals.

Kuma is a great swimmer. It can swim fast and stay long in a water. Kuma also has good sense of smell. It can smell up to 16 km away. Most polar bear also has such ability. It helps them to trace their preys.

We can find polar bears in Arctic, in Canada, Alaska, Greenland, Norway and Russia. Kuma origin is from Russia. Kuma origin is from Russia. Kuma moves to zoo when it's 4 month old after its mom was killed by a hunter.

Now, Kuma lives safely and happily in a zoo. The sad news about polar bear is it is almost endanger. Climate change and hunters threat their live.

What is the real color of polar bears' skin?