Explain why a balloon expands when taken to a higher elevation if the temperature remains constant?

B)The decrease in atmospheric pressure relative to pressure inside the balloon causes it to expand.

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2