Use the cues given to write correct sentences.
1. Our rivers/ streams/ seas/ dirtied/ activities on land.
=> Our rivers, streams, and seas are being dirtied by activities on land.
2. Forest/ important economic value/ because/ they provide/ us/ resources such as timber.
=> Forests have an important economic value because they provide us with resources such as timber.
3. Forest/ vital/ the enviroment/ because/ they/ clean/ air/ we breathe.
=> Forests are vital to the environment because they clean the air we breathe.
4. Man/ cut/ too many trees/ over the years/ and/ we now face up/ problem/ deforestation.
=> Man has been cutting too many trees over the years and we now face up with the problem of deforestation.
5. The forest/ still a place/ hold/ many/ world's most valuable resources.
=> The forest is still a place that holds many of the world's most valuable resources.
6. Soil erosion/ result/ when forests/ cut down carelessly.
=> Soil erosion results when forests are cut down carelessly.
7. As erosion/ occur/ soil and other land debris/ washed/ our rivers.
=> As erosion occurs, soild and otherland debris are washed into our rivers.
8. Motor boats/ pollute rivers/ gas/ oil emissions.
=> Motor-boats pollute the river with gas and oil emissions.
9. Most soaps/ detergents/ contain/ phosphates/ substance/ damaging/ enviroment.
=> Most soaps and detergents contain phosphates, a substance that is demanding to the environment.
10. Washing clothes/ bathing/ rivers and streams/ send/ these phosphates/ sea/ causing damage/ fish and marine life.
=> Washing clothes and bathing in rivers and streams send these phosphates out to the sea, causing damage to fish and marrine life.