How is solid water less dense than
liquid water

Its all about How cold the Tempurture is - 50 or Lower makes Compacted ice MUCH denser than Normal type of ice thats very Thin like Thin Glass cups..  Liquid water has Ablsolute no Attracked Atoms..Diff Types of atoms so its Very Momentomable.. | Correct me if i did some mistakes for that Example

g1

choices:

a. g2. b. g1. c. m

cell division has two checkpoints namely, g1

checkpoint and spindle assembly checkpoint. the checkpoint which determines if

division has properly occurred is the g1 checkpoint. at this point, is a damage

in the dna is detected or  the has not reach the optimum size, the cell is

stopped in g1 and is not allowed to proceed to further process.

source:

is this a psat question, if so do not cheat try your best.