In which of the following ways has the green revolution been unfriendly to the environment?
soil conservation
crop rotation
use of pesticides
introduction of new varieties of crops

The correct answer is - use of pesticides.

The term Green Revolution may seem as something that is environment friendly, but in fact, it is the opposite of that. The Green Revolution is actually a set of research and technology development in the agricultural field that introduced bigger usage of pesticides in the production, as well as an increase in fertilizers, and introducing high-yield crop varieties.

islam spread slowly through much of africa through trade and preaching.

the right answer is d) a conference committee. it is a temporary panel formed by house and senate members in order to reconcile differences in legislation.