The earth's energy budget describes the amount of power left on earth ensures a balance of fossil fuels describes the balance of heat or energy coming into and going out of earth conducts heat in the atmosphere

The earth's energy budget describes the balance of heat or energy coming into and going out of Earth into the atmosphere. This budget is a measure of the radiation balance. 

1. antarctica2. saudi arabia

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.