Acar moves along a road that has markers every kilometer. over time, it passes the markers in shorter periods of time. which best describes the motion of the car? a the car is keeping the same direction. b the car is maintaining the same speed. c the car is increasing speed. d the car is changing direction.

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.