Which of the following practices are likely to be part of a sustainable society?
i. recycling old products to use in the manufacturing of new products
ii. maintaining a population that consists of three children for every adult
iii. planting a new tree to replace every tree that is cut down

i only
ii only
i and ii only
i and iii only
ii and iii only

I and III only. I assume this is APES. Recycling old products reduces the usage of materials by using old ones and planting a new tree to replace every tree cut down would allow the world to continue economic developments while not exhausting forestry. II is wrong because if every adult had 3 children then a family would have 6 children and more children = more resources