In which situation would alley cropping be most useful for sustainable farming? A - growing crops on a mountainside

B - growing crops in an area with little rainfall

C - growing crops that need the same nutrients from the soil

D - growing crops that require a lot of shade

What occurs during a combustion reaction

Ais a multilevel way of grouping items based on common properties among them. a. memory b. conceptual hierarchy c. schema d. semantic network

1) a child holds two dogs on two separate leads. the dogs are pulling in different directions. one is pulling a force of 20n north and one is pulling 15n eastwards. calculate the resultant force on the child. state the direction. (use the parallelogram of forces) 2) a force of 20n acts horizontally on an object. a second force of 5n acts at 60 degrees to the first one. calculate the resultant force. worth 20 points, need answers asap with method you x