Which of the following is an example of a renewable resource?
a: coal
b: oil
c: gas
d: water
i really need a answer!

Water. Water is being constantly reproduced while we are running out of coal, oil, and gas.

All of these are renewable technically but they probably want you to pick a "clean" renewable so d would be what to choose for a "clean" renewable.

Answer accretion;

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.