Landfills are one source of CO2. As garbage decomposes, it releases CO2 into the air. Can you think of at least one way that humans can reduce the amount of trash they dump in landfills?

the answers are as following:

1. c. double helix, nucleosome, coil, supercoil, chromosome

2. b. g2 phase, preparation for mitosis

3. d. interphase consists of the g1, s, and g2 phases

4. c. metaphase

5. a. chromosomes are duplicated before cell division so that each new daughter cell has a complete set

i think its both a and b