The diameter of a human hair is   meters. The diameter of a spider's silk is   meters.How much greater is the diameter of a human hair than the diameter of a spider's silk?Write your answer in scientific notation.

Mandy is 6×1016×1016×10 1 inches tall. An average human hair is 3×10−33×10−33×10 −3 inches thick. About how many times taller is Mandy than a human hair?

What is the size comparison of one nanometer to the width of a human hair?a.1:10,000b.1:10c.1:100,000d.1:1,000

The width of a silk fibre is 0.000015 metres.What is this width in scientific notation?Question response areaSelect one option1.5 × 10−5 metres15 × 10−5 metres1.5 × 10−6 metres15 × 10−7 metres

Two lions, Fluffy and Fireball, met at the zoo. Fluffy's tail is   of a meter long. Fireball's tail is   of a meter long.How much longer is Fluffy's tail than Fireball's tail?

Two friends, Anita and Candice, are growing out their hair. They plan to cut it off at a certain point and donate it to a charity that makes wigs for people with cancer. Anita's hair is already 26 centimeters long and grows at a constant rate of 1 centimeter per month. Candice's hair is 16 centimeters and growing at a speed of 2 centimeters per month. If the girls get their hair cut on a certain day, they will have exactly the same length to donate. How long will their hair be? How long will that take?