Composition of Earth's atmosphere by volume. The lower pie represents the trace gases that together compose about 0.038% of the atmosphere (0.043% with CO2 at 2014 concentration). The numbers are from a variety of years (mainly 1987, with CO2 and methane from 2009) and do not represent any single source.
User: How long did Thoreau live in the woods at Walden Pond? User: How long did Thoreau live in the woods at Walden Pond? Weegy: Thoreau lived in the woods at Walden Pond for two years, two months, and two days.
He had a distant view of the railroad where it touches the pond on the one hand, and of the fence which skirts the woodland road on the other.. Although less than a half hour's walk along the tracks to his parents' house, Thoreau's spot in Walden Woods was nevertheless a solitary place in the 1840s.