Which statements are true about polymers? Select all that apply.

A- Polymers are short loops.

B- Polymers are often made from one singular atom.

C- Polymers are often made from repeating units.

D- Polymers are long chains.

the question isn't complete here so i can't right an answer '_'

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.

d. planting trees

the trees take in carbon to make oxygen.

i am sorry but i need more information and a picture.