(02.03 LC) How has the discovery of 5,300-year-old Ötzi, the Iceman, helped scientists in their knowledge? (4 points)
Ötzi, the Iceman, was as old as previously thought.
Ötzi, the Iceman, existed at a time when the climate was warm.
Precise knowledge about his food and clothing is available.
Humans from that period are exactly same as modern humans.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this