Whereas the boiling
the boiling point (the temperature at which a lie
vaporizes) of water (h2o) is 100 c, whereas the
point of methane (cha) is -161 c. explain this diffe,
in terms of hydrogen bonding between molecules

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

your answer is going to be physical weathering