Given the recent evidence suggesting that species change due to a certain genetic variations, what would be true? a) the theory was wrong.
b) natural selection cannot use evolution.
c) mutation and natural selection both cause changes in a population.
d) changes in a population occur abruptly as a response to the environment.

c) mutation and natural selection both cause changes in a population

Explanation:

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grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards