Do you know...?
There is a lot of water on the Earth. The water is in the rivers and in the lakes. There is much water in the deep seas and oceans too. But the water in the seas and oceans is salty. Water is in trees, in flowers and in the air. Nothing and nobody can live without water. Some waterfalls down on the Earth as rain.

Lake Baykal/the Baikal is the deepest lake on the Earth. The water is fresh in this lake. It is 1,741 metres deep. The Baykal is a source of beauty and power for the Russians. But Paper and Pulp Mill* at Baykal pollutes the lake now. So, this beautiful lake is in danger now.

3

PW. Read the information and think of more questions.

There are big lakes and rivers in the world. Many birds build nests nearby, and they catch fish in the water. People use water for the plants in the gardens, orchards and fields, houses and factories. Sometimes they use water too much and as a result of it the rivers and lakes dry up. Look at this picture!

This lake has dried up. The lake looks like a desert. The fish and the birds have died out.

• What would the birds say to people if they could speak?
• How would people answer the birds?
• What do birds need the water for?

Think of 4 questions the birds would request. Write your own ideas.

1. ______________
2. ______________
3. ______________
4. ______________
4

CA/GW. Find out True/False sentences.

1. Water isn’t important for life.
2. Lake Baykal/the Baikal is in danger now.
3. Water isn’t clean in seas, rivers and lakes.
4. We should keep water clean and air fresh.
5. People should save nature from pollution.
6. People don’t think about how to save the planet Earth.