1
1) Hill has started and sold two businesses.
2) He has been a webber, a designer and an environmentalist.
3) He has begun to consume less meat and other stuff.
4) Hill thinks we need an ability/a skill to "edit" our homes and lives.
2
Тут нужно бы видеть другие тексты, но, вероятнее всего, их тема
b) Raising awareness about sustainability (Повышение информированности об устойчивом развитии)
3
1 matter of taste (дело вкуса)
2 rubbish
3 statistics
4 outfit
4
1 - с
2 - d
3 - a
4 - e
5 - b