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which statement is true?

select one:
a. geothermal power is generated from moving water.
b. oil, a renewable resource, is processed to make jet fuel.
c. wind power can turn turbines to generate electrical power.
d. propane, a renewable resource, is used in some heating systems.

Amplify and switch electrical power and electronic signals

The independent variable would be the fertilizer as it is what the dependent variable (the growth of grass) depends on.

Initial velocity,  u = 4.9 m/sfinal velocity = v m/sinitial height,  h₁ =  245 m    final height, h₂ = 0a = -9.8  m/s²time taken = t secondss = ut + 0.5at²⇒  (h₂-h₁) = ut + 0.5at²⇒  0-245 = 4.9t + 0.5×(-9.8)×t²⇒ -245 = 4.9t - 4.9t²⇒ 4.9t² -4.9t -245 =0solving it, we get   t = 7.59sv  = u +  at = 4.9 -9.8×7.59 = 4.9 - 74.38 = -69.48 m/svelocity is  69.48 m/s downward