My teacher wants me to make something that prevents pollution or could us not have it. any ideas that are easy to make? i don’t want to be carrying something big around school. it also has to be original. : )

you can ,Choose to walk or ride a bicycle whenever possible, Take care to properly dispose of your pet's waste that can really help, and don't litter that all i had in mind  if i have more ill gladly come back to tell you :)

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]