Спасибо заранее !!

Ответы:

1.Cities on the coast, are often ports

2.each country has factories, polluting



1) The cities that located on coasts are ports usually. 2) Fields divided of live fences are  look nice always . 3) Poisoned rivers are dangerous not only for fish, but also for people. 4) In each town there are factories that spoil the ecology.