Bradley and shane both were chased by Josephine's dog and ran up a set of stairs .In 15 seconds ,Bradley (75kg)runs to a level 10 meters above the ground level while Shane (50kg) runs to a level which is 12 meters above the ground level. You are asked by Josephine to compare Bradley's performance with Shane's performance. What can you say about Bradley's speed and his power compared with Shane's?

not too sure thinking it will always be directed towards the centre of the earth. could be wrong not sure

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.