The rock that caps mt. everest, in the himalayas, is limestone and contains fossilized marine creatures. alfred wegener, a german scientist, explained the occurrence of marine fossils high in the mountains by describing the existence of a super-continent, pangaea. pangaea eventually broke apart and gradually became the continents we know today and this was referred to as continental drift. wegener's early theory of continental drift provide evidence to support a) natural selection. b) the big bang theory. c) survival of the fittest. d) the theory of plate tectonics.

Answer to your question is most likely D

Answer sinking and cooled;

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.