If earth's gravity were much less powerful, our atmosphere would be similar to
a. the moon's
b. saturn's
c. venus'
d. jupiter's

If Earth's gravity were much less powerful, our atmosphere would be similar to the moon's.

Explanation:

The gravity on the Moon is 16.66% of what is on Earth. This kind of gravity,  in astronomical language, is called 'microgravity'. Much less gravitational power on Earth would have turned it into microgravity, which would apparently have been unable to hold down most of the gases that constitute the atmosphere on Earth. For the gravity on the Moon is very less, it only has a few gases like sodium and potassium. Most of he gases that are present on the Moon are not naturally found on Earth.

Answerprediction;

In a right-angled triangle: 1- the hypotenuse is the longest side2- we can apply pythagorean rule which states that: (hypotenuse)^2 = (side1)^2 + (side2)^2for the given triangle,longest side is 15 cm  side1 = 9 cmside2 is 12 cm  to check whether the triangle is right-angled or not,compare (15)^2 to the summation of (9)^2 and (12)^in other words, compare 225 to the summation of 81 and 144if they are both equal, then the triangle is right-angles, otherwise, it is not.you haven't provided the diagram showing her work, so i cannot tell the choice. however, apply my explanation to the question you have.