Which of the following is a reason why society might reject the idea that humans are causing global warming?
because scientists have not discovered evidence that supports this theory
because the theory is a hypothesis that has not been repeatedly tested
because this theory implies that humans need to change their behavior in order to prevent global warming

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.