Answer:
1. calamity - an event resulting in great loss and misfortune; "the whole city was affected by the irremediable calamity"; "the earthquake was a disaster" catastrophe, tragedy, cataclysm, disaster. misfortune, bad luck - unnecessary and unforeseen trouble resulting from an unfortunate event.
2. Our forests, rivers, oceans and soils provide us with the food we eat, the air we breathe, the water we irrigate our crops with. We also rely on them for numerous other goods and services we depend on for our health, happiness and prosperity.
3. Humans affect the environment in positive and negative ways. Cutting down trees and littering have a negative effect on animals and plants. Protecting endangered species and cleaning lakes and seas has a positive effect on the environment.
Explanation:
Correct me if I'm wrong
