Чтение отрывка 7 класс

Do you know why it is hot in the summer and cold in the winter? Most people believe that it is because the Earth is closer to the Sun in the summer and farther from it in the winter. But it is not like this at all! In fact, the distance between the Earth and the Sun is largest in July and smallest in January! Scientists suggest that the reason for different summer and winter temperatures is the angle of the Sun’s rays. In the summer, the rays reach the Earth almost at a right angle. Due to this, the rays are not spread out and a smaller area of the planet's surface gets the energy. In the winter, the angle changes and the Sun’s rays are spread out over a larger area. Besides this, the long nights and short days do not give enough time for the land to warm up.

Venus is one of the hottest planets in the Solar system. The temperature on its surface is 482 degrees. This unfriendly place looks much the same as the Earth 4 billion years ago. Both planets were formed from the same gas cloud but Venus lost most of its water and atmosphere. This happened because the planet turns very slowly. As a result, now it has no magnetic field to protect it from the Sun's winds. The planet has turned into a lifeless desert. Most space modules that were sent to Venus, could not work on the planet more than two hours. The acidic clouds and high pressure quickly made them absolutely useless.

Wombats are exotic animals that only live in Australia. They have become an unofficial symbol of the country. In 1974 a wombat appeared on an Australian stamp for the first time. Since then it has been regularly used on different Australian stamps and coins. Wombats look like little bears and prefer grass to meat. They also love eating berries, plant roots and mushrooms. Like camels, wombats drink little water because there is enough water in fresh grass. Wombats spend most of their life in holes under the ground. With their strong arms and long nails they are able to dig very long and complex tunnels. Fortunately, wombats have few enemies in the animal world. Most wombats live around 15 years.

The Arctic Ocean is the smallest ocean of the world. It covers the northern polar region of the Earth. The Arctic region is a very cold place. The lowest recorded temperature there is minus 68 degrees. In spite of the cold, a lot of animals live on the Arctic ice. The polar bear is one of them. Now, due to global warming, the polar bear is in a serious trouble. The thing is that polar bears hunt seals and they need ice to do this. The bears wait for seals on the ice, hunt them in the water and go back to the shore. If the ice is too thin, it breaks under the bears’ heavy bodies and they may drown. The situation is getting worse and some researchers say the ocean may become ice-free as soon as 2050.

Do you know why it is hot in the summer and cold in the winter? Most people believe that it is because the Earth is closer to the Sun in the summer and farther from it in the winter. But it is not like this at all! In fact, the distance between the Earth and the Sun is largest in July and smallest in January! Scientists suggest that the reason for different summer and winter temperatures is the angle of the Sun’s rays. In the summer, the rays reach the Earth almost at a right angle. Due to this, the rays are not spread out and a smaller area of the planet's surface gets the energy. In the winter, the angle changes and the Sun’s rays are spread out over a larger area. Besides this, the long nights and short days do not give enough time for the land to warm up.

Venus is one of the hottest planets in the Solar system. The temperature on its surface is 482 degrees. This unfriendly place looks much the same as the Earth 4 billion years ago. Both planets were formed from the same gas cloud but Venus lost most of its water and atmosphere. This happened because the planet turns very slowly. As a result, now it has no magnetic field to protect it from the Sun's winds. The planet has turned into a lifeless desert. Most space modules that were sent to Venus, could not work on the planet more than two hours. The acidic clouds and high pressure quickly made them absolutely useless.

Wombats are exotic animals that only live in Australia. They have become an unofficial symbol of the country. In 1974 a wombat appeared on an Australian stamp for the first time. Since then it has been regularly used on different Australian stamps and coins. Wombats look like little bears and prefer grass to meat. They also love eating berries, plant roots and mushrooms. Like camels, wombats drink little water because there is enough water in fresh grass. Wombats spend most of their life in holes under the ground. With their strong arms and long nails they are able to dig very long and complex tunnels. Fortunately, wombats have few enemies in the animal world. Most wombats live around 15 years.

The Arctic Ocean is the smallest ocean of the world. It covers the northern polar region of the Earth. The Arctic region is a very cold place. The lowest recorded temperature there is minus 68 degrees. In spite of the cold, a lot of animals live on the Arctic ice. The polar bear is one of them. Now, due to global warming, the polar bear is in a serious trouble. The thing is that polar bears hunt seals and they need ice to do this. The bears wait for seals on the ice, hunt them in the water and go back to the shore. If the ice is too thin, it breaks under the bears’ heavy bodies and they may drown. The situation is getting worse and some researchers say the ocean may become ice-free as soon as 2050.