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published presentations and documents on DocSlides.

-The farm workers toiled

by lindy-dunigan

all day, picking vegetables in the hot sun.. -It...

Litter in the Marine Environment

by calandra-battersby

Sierra Club Marine Action Team. Judith S. Weis. T...

Supernova 1987A at 25 years

by lindy-dunigan

Highlights of the past 25 years. Outstanding myst...