Ex 5. Combine the sentences in each pair into a new sentence that shows a cause/effect relationship. Use cause and effect signal word or phrase given in brackets

1. The polar icecaps are melting because one effect of global warming is that sea levels are rising.
2. Because of there are much better levels of nutrition, the global population has increased.
3. Nuclear explosions and detonations of nuclear weapons lead to radioactive pollution.
4. Air pollution is rising as a consequence of more and more road are being built.

5, In the last ten years, many BC valleys have been clearcut so 142 species of salmon have become extinct
6. The fish and other aquatic animals have died due to the fact that the water is polluted.