The human population is predicted to continue increasing as the rate of climate change also increases. What technology doesn't address the concerns raised by these trends?

A) mag-lev trains
B) man-made islands
C) self-driving cars
D) chemically-engineered food

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.

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