Two plastics that are targeted for recycling from household waste are polyethylene terephthalate (pete) and high density polyethylene (hdpe). one of the problems of recycling such materials is separating them. suppose you have been hired to set up a process for separating large quantities of waste plastic that is a mixture of pete and hdpe. describe how you might perform this separation.

the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.