Răspuns:
1.
1) deforestation by planting trees
2) pollution by walking to school
3) endangered by adopting an animal
4) rubbish by recycling
2.
1) start
2) doing
3) grow
4) building
5) creates
6) organising
3.
1) tiger
2) butterfly
3) crocodile
4.
1) out
2) to
3) after