The Earth's surface is warmed because . the ionosphere traps the sun's heat
it absorbs all of the sun's radiation
the atmosphere absorbs more short-wave radiation than the land
land and water absorb more short-wave radiation than the atmosphere

Indicate whether the specified alkyl halides will form primarily substitution products, only elimination products, both substitution and elimination products, or no products when they react with sodium methoxide. 1-bromobutane 1-bromo-2-methylpropane 2-bromobutane 2-bromo-2-methylpropane