To obtain the number of meters from a distance measured in centimeters, you must a. multiply b. divide by the number a. 5,280 b. 10 c. 12 d. 100

we know that

one meter = 100 centimeter

1 m = 100 cm

clearly centimeter is smaller unit . to convert a smaller unit to higher unit , we must divide. so to convert distance measured in centimeter into meter , we must divide by 100

for example :

lets assume distance measured is 10 cm .

d = 10 cm

since 1 m = 100 cm

hence

d = 10 cm (1 m/100 cm )

d = (10 x 1 /100) (cm x m/cm)

d = 0.1 m

so correct choice is divide  by

D.100

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.