1
A.... is a group of establishments which belong to a single company , have the same appearance and sell similar food.
2
are devices used to direct water in order to water plants, grass.
3
is used torefer to a way of using natural products so that no damage is caused to the environment.
4
are the marks made by a person is or animal is feet.
5
means animals and plants that grow independently of people,usually in natural conditions
6
To... means to receive or give a helpful or good effect.
