PLEASE HURRY! I AM BEING TIMED! Which statements correctly describe theories? Check all that apply.

All theories that scientists could discover have already been written. Theories develop over time as new scientific evidence is discovered. Parts of theories cannot be disproved, but new parts can be added. Theories and laws are the same types of rules about how nature works. Theories can be changed when new fields of scientific study develop.

Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. which one, if either is correct? a. beryl, because low thermal conductivity results in low heat transfer. b. beryl, because low thermal conductivity results in high heat transfer. d. sapphire, because low thermal conductivity results in high heat transfer. e. neither, because low heat transfer is desirable both in summer and in winter.