In the first picture I can see a crossroads.In the middle of the street staying a man. He is propably showing something. Meybe he helps somebody or direct in cleaning this city.

The second picture shows plasterd beach and trees. This is propably flood, meybe it's result of some hurricane, storm or tsunami. I can see also smash trees and devastated buildings.

a) I think that's people's job. They aren't thinking what they do, like destroy nature. I have hope, that poeple can take care about environment.

b) Yes, these catastrophes scared me. I though that many people died in it.

c) We must must care about our world as most as we can.