Complete the text with the words (записать в тетрадь)
Atmosphere, harmful, levels, warming, disasters, ozone, greenhouse, temperature, ice
Harmful gases cause the 1….. effect. The gases go up into the Earth’s 2……. and stop heat from leaving the Earth. The 3…….. on our planet is running up. This is known as global 4…….. Global warming may result in the melting of the 5…… at the Poles and rising of sea 6 ……, leading to serious flooding and other 7……… in many parts of the world.
The next problem is holes in the 8 …… layer. They pass ultraviolet light coming from the sun, which can have 9 …… effect on animals and causes skin cancer in humans.