The suns thermal energy is transferred to earth through space by?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

In an exothermic reaction, energy may be released to the surroundings in the form of question 4 options: heat light thermal all of the above

Idont understand it 1.what is the boiling point of a solution of 675 grams of ethylene glycol (c2h6o2) in 2.50 liters of water?