Read the following sentences and find the cause and effect in each of them. • What phrases introduce cause? effect? 1

1 The wreck of the “Sea Queen” - cause; oil spill - effect2 It is not cost-effective - cause; it is unreasonable to clean the birds - effect3 Oil pollution of the sea cause; the birds’ death - effect4 Human ignorance about ecology cause; catastrophes - effectPhrases to introduce the cause: because (of), is caused by, as a result of. Phrase to introduce effect: results in.