Решение:
- Sentence A:
- Correct answer: 3
Explanation: Russia has different plants and animals. The brown bear is one of the most famous animals in Russia. These animals usually living in forests or tundra can be seen in Alaska, and in many parts of Russia. The number of bears does not change but people have to protect these animals.
- Sentence B:
- Correct answer: 4
Explanation: At the food chain, brown bears play important roles as predators (animals that kill and eat other animals) which keep the populations of other animals under control.
- Sentence C:
- Correct answer: 3
Explanation: Brown bears are dangerous animals and they can attack people. It is not a good idea to keep brown bears as pets. Human activities are dangerous for the population of brown bears. People often hunt brown bears as the trophy. People cut down trees in forests and destroy places where bears live.
- Sentence D:
- Correct answer: 1
Explanation: A polar bear has a thick layer of body fat and a coat which protect it from cold air and water. Scientists say that these animals are marine (connected with the sea) because they spend most of their lives on the sea ice. Polar bears are known for their strength, but they're quite speedy, too.
- Sentence E:
- Correct answer: 2
Explanation: The main diet of a polar bear is meat. They spend almost 50% of the time hunting for the food. They need to hunt as much as they can because they need a lot of fat to survive. Polar bears are the top of the food chain and have an important role in the food chain.