Chat with our AI personalities
It deflects harmful radiation and keeps earth at livable temperatures.
Humans span roughly 0.0044% (about 4 thousandths of one precent) of the time since the Earth was formed.
it is the luckiest number on earth!
The answer to this question depends on the ratio os what aspect of plants and humans you are interested in. Is it the ratio of:the number of speciesthe number of individualsthe total (bio-)mass.
Where the Earth is concerned, humans live in the 'biosphere', together with all other living matter. Overlapping the biosphere, are the hydrosphere, and the atmosphere, and below us , inside the Earth, is the lithosphere. Above the atmosphere is the stratosphere, and then the ionosphere. NB All theses 'spheres' overlap to some extent.