Every 1,000 kg of paper we recycle, about 26,000 L of water and 17 trees can be saved. If Isabel's school recycles a total of 53,000 kg of paper, how many trees will this save?

The students observe and record the events in their terrarium, using a Celsius thermometer, camera, hand lens, measuring tape, and notebooks. Describe one fact about food webs that the students' research will support.

A. None of the other answer choices

B. Many food webs contain only carnivores and decomposers.

C. Many food webs contain only consumers and decomposers.

D. Many food webs function without decomposers.