Task 4 Form nouns from the verbs: 15. The tsunami caused the… at a nuclear power plant. (explode)
16. The landscape of Kazakhstan is protected well, thanks to …(preserve) projects.
17.The volunteers struggle for …. water pollution of the local river. (reduce)
18. Everybody likes teacher’s …to play the grammar games at the lesson. (suggest)
15 - explosion
16 - preservation
17 - reduction
18 - suggestion