Compare and contrast food chains and food webs in a short essay. before you begin writing, create a venn diagram to write out and organize your thoughts.

i need this in like 10-20 mins me i will rate and and give brainiest.
(short essay= paragraph)

Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?