Statements: Jade plant has thick leaves and it requires little water. Conclusions: 1 All plants with thick leaves require little water. 2 Jade plants may be grown in places where water is not in abundance.

The statement talks of jade plants only and not 'all plants with thick leaves'. So, I does not follow. Also, since jade plants require little water, so they can be grown in places where water is not in abundance. So, II follows.