Multiple choice: 1.) In which situation would alley cropping be most useful for sustainable farming?

growing crops that need the same nutrients from the soil
growing crops that require a lot of shade
growing crops in an area with little rainfall
growing crops on a mountainside

2.) Which of the following is a possible consequence of damage to infrastructure due to flooding?

The prices of local crops are lowered.
Pollutants are spread to farmland.
The flow of goods is decreased or halted.
Homes and businesses are washed away.

Multiple choice, select the 2 correct answers:
3.)Which of the following are challenges to implementing sustainable farming practices?

a - increased need for fertilizer
b - higher initial costs
c - increased labor costs
d - increased erosion
e - lack of pollinating insects