Which of the following statements is true?

A. The average thickness of the crust is 20 miles.
B. The Earth's crust is made of different continental plates.
C. The crust below the continents is made of granite.
D. All of the above.

Answer (a) the itcz comes overhead for part of the year; i believe this is correct,plz check first; ///

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.