Answer:
On a personal level, photography has always been there to document a time in mine or a loved ones' life. I can't honestly imagine a world where nobody has seen their own baby pictures. On an impersonal level, photography can be used to show people places of the world that they can't normally see, or certain animals or plants that they can't normally see. Imagine a world where the moon landing was undocumented, and there were no pictures of the holocaust or any worldly leader throughout history. Imagine a world without pictures of celebrities, or models to advertise products. Imagine a world where pictures of the products can't even be taken. A world without proper documentation, outward experience, or personal media, that's the world without photography.
Step-by-step explanation:
I have a photography class with the same question, this was my answer. Hope it helps :)