Three advantages and disadvantages of slash and burn farming ​

Slash and burn agriculture also known as primitive subsistence farming is used by arrivals mostly.

Although it has quite a few advantages it also has a few disadvantages. 

1). This type of farming cannot feed a lot of people. It can be used only by the people of the family.

2). The land that has been used once cannot be used again .

3). This kind of farming requires the farmer one the family to change their lands again and again.

d) all choices are correct

b)

it created free trade throughout the colonial territories.