Easy question. answer should include one line reasoning

The number-labels don't show in the picture, so we don't know the number of the correct one.

The correct path is the one shown in the upper-right panel.  The path of the light beam forms the shape of the letter ' V ', with the point at the bottom, down on the book.

false

explanation:

boats, things on boats luggage are way more heavy then water.

myth. it was once thought that animals, including cats and dogs, could only see in black and white. however, scientists have proven this to be a myth. in all animals, including humans, the perception of colour is determined by the presence of cells in the eye called cone photoreceptors.