The most distant object a human can see without the aid of an optical device (such as a telescope) is the Andromeda Galaxy approximately 2.5 million light years away. If we consider a photon traveling from that galaxy to you here on Earth; (a) How long does it take the photon to travel to us in our reference frame?
(b) How much time is experienced by the photon during this journey?
(c) Comment on your answers.

s the environmental science is a broader field that incorporates many elements of earth and life sciences, whereas ecology is usually more focused on how organisms interact with each other and their surroundings, and often on a very specific population of living things. soo yea

explanation:

e) none of the above answers are correct

there are no components of a physical goal mentioned on the list of choices that you've provided.