Why might buying a more expensive product made of recycled materials be a smarter purchase in the long run?

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

What are some natural processes that represent physical and chemical changes?

Use the distance formula to determine weather each pair of segments have the same length