In which kind of climate would frost wedging most likely occur? A. a wet climate in which temperatures remain below freezing B. a wet climate in which temperatures alternate between below freezing and above freezing C. a dry climate in which temperatures remain below freezing D. a dry climate in which temperatures alternate between below freezing and above freezing

colorless gas, exhibiting a blue glow when placed in an electric field

b) solid

its a type of rock

answer;

18.5 seconds

explanation;

velocity is distance covered per unit time; it is given by displacement divided by time.

thus; time = displacement/velocity

total time = total displacement/velocity

total distance = 5000 meters south

total time = 5000/4.5

                  = 1111.11 seconds

but; 1 minute = 60 sec

thus; 1111.11 /60

                = 18.51 seconds

thus; the time taken is 18.5 seconds