Why do the outer planets in the solar system have much longer year lengths than the inner planets?
a) the outer planets are bigger than the inner planets.
b) the outer planets spin much faster than the inner planets.
c) the outer planets have longer day lengths than the inner planets.
d) the outer planets have longer orbital paths than the inner planets.

Ascientist has predicted that the population of earth will continue to grow exponentially until the year 2300. at that point, we will reach carrying capacity of earth’s resources, and population growth will plateau. if the scientist’s prediction is correct, what can you predict about human energy use at that time? justify your answer by explaining the relationship between population growth and energy use. (5 points)