Pls asap - flvs btw

which statement best describes the long–term effects of using renewable resources?

select one:
a. there is an unlimited supply of fresh water on the earth.
b. melting glacier ice will supple more fresh water.
c. as populations decrease, renewable resources will also decrease.
d. as demand for renewable energy increase, fossil fuel use will decrease.

Although light from the sun appears white, it is actually made up of a lot of different colors. this portion of the electromagnetic spectrum, we call white light is referred to as within the electromagnetic spectrum.

1point) a skydiver weighing 130 lb (including equipment) falls vertically downward from an altitude of 14,000 ft and opens the parachute after 20 s of free fall. assume that the force of air resistance, which is directed opposite to the velocity, is of magnitude 0.85|v|0.85|v| when the parachute is closed and is of magnitude 17|v|17|v| when the parachute is open, where the velocity vv is measured in ft/s. assume that acceleration due to gravity has magnitude 32 ft/s/s; remember that weight is the product of mass and gravitational acceleration. find the speed of the skydiver when the parachute opens. speed is 150.6121788 ft/s find the skydiver's height when the parachute opens. height is 2338.98591 ft find the limiting velocity vlvl after the parachute opens. (think about whether this should be positive or negative.) vl=vl= 7.647 ft/s

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?