Answer:
I'm sure that it's B, Rocks with gap and cracks weather more quickly than rocks with smooth surfaces.
Explanation:
Rocks with gap and cracks weather more quickly than rocks with smooth surfaces, because water can go inside the gaps of the rocks, which causes weathering, because it slowly splits the rock apart.
Hopefully, this helps! :D
Answer:
I think it will mean that the words of the question represent the key-words of your thesis. So you mustn't change the words of the question while writing your thesis
A jar contains 12 marbles 4 red 3 white 5 blue. A marble is randomly selected, it's color record, and then the marble is returned to the jar. A second marble is randomly selected. Find the probability that both marbles selected are blue