A quantidade de energia solar que atinge uma região também varia ao longo do ano. No território português recebe maior quantidade de energia no solstício de *

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen

The answer is false.if you have any questions ask

The telegraph idk what else to tell you you are probably just gonna copy it which btw i would do the same thing but it says i have to have at least 20 characters so yeah there you go 

Bcold,less-dense air falls