The oil on the surface of the water which comes from ships
a mixture of smoke and fog that is caused by cars and factories
rain that has acid from pollution and harms plants and buildings
harmfull materials that are not used any more, and pumped into rivers, lakes, seas
Every year in the US there are about 5000 tornadoes
There is Tornado Alley in the US
the tornado season is usually in summer
When the sirens go off, people use their disaster plans
After the tornado people 1st check to see if it's safe to go out and then they check the buildings and area for damage
If you (need) help moving to your new flat, (call) me
We (not go) hiking unless the weather (be) good
If it (snow) a lot tonight, we (make) a snowman
Створюйте онлайн-тести
для контролю знань і залучення учнів
до активної роботи у класі та вдома