The knights of the round table express their solidarity by wearing a green girdle as gawain does. why does gawain wear the green girdle?
a) as a symbol of his courage
b) as a mark of honor
c) to show his love for nature
d) as a symbol of his weakness

Gawain wears the green girdle as a symbol of his weakness - he failed to finish what was asked of him, and he started wearing the girdle to show his failure. 

Ascenario where we impact the environment is when humans/ us litter outside or in the ocean which causes wild life to die or even extinct and also if we keep cutting down our trees we might not even have oxygen to live humans also keep limiting water resources wasting it s