3 *** Read the text again and answer the questions.Where can you find the saiga antelope?You can find it in Kazakhstan and some otherCentral Asian countries.1 What does the saiga antelope look like?2 Do saiga antelopes live alone or in groups?3 How many saiga antelope were there in the1990s? How have those numbers changedtoday?4 What has caused the drop in saiganumbers?5 What are organisations doing to help toprotect the saiga?​

Scientists have known about the greenhouse effect since 1824, when Joseph Fourier calculated that the Earth would be much colder if it had no atmosphere.

The rapid rise in greenhouse gases is a problem because it is changing the climate faster than some living things may be able to adapt.

Also, a new and more unpredictable climate poses unique challenges to all life.

As the mercury rises, the climate can change in unexpected ways.

In addition to sea levels rising, weather can become more extreme.