1)trees produce photosynthesis 2)planet without water can not exist 3)today very polluted atmosphere 4)Trees emit oxygen 5)the ozone layer is destroyed each day
1) It often rains in autumn. 2) Fogs are quite a common phenomenon in September. 3) Russia is famous for its frosts. 4) Snow begins to melt when the temperature is above zero. 5) When the sun shines brightly it becomes hot.
2)planet without water can not exist
3)today very polluted atmosphere
4)Trees emit oxygen
5)the ozone layer is destroyed each day
2) Fogs are quite a common phenomenon in September.
3) Russia is famous for its frosts.
4) Snow begins to melt when the temperature is above zero.
5) When the sun shines brightly it becomes hot.