Knowing that you're facing west when watching a sunset, how can you use the changes of the sun's position in this photo to determine whether these photos were taken in the northern or southern hemisphere? PLEASE HELP THIS IS DUE TODAY

If you were a casual recreational hiker with young children, which of the following trails would be least strenuous for a leisurely family outing? a. merced lake trail b. mirror lake loop trail. c. tenaya lake and tuolumne meadows trail d. el capitan trail