Canals are man-made, meaning, they are Human Systems.
Faults are natural, meaning, they are <span>Physical Systems.
Floods are not created by man, meaning, they are </span>Physical Systems.
Bridges are man-made, meaning, they are Human Systems.
I hope this helps!
He drew a famous cartoon of a donkey wearing a lions skin scaring other animals
D I’m pretty sure I don’t know what else to write