On the first day of fall,
a. the sun does not set along the arctic or antarctic circles
b. the sun does not rise along the arctic or antarctic circles
c. all places on earth have relatively the same amount of day and night
d. days are shorter in the northern hemisphere than in the southern hemisphere

It's probably because some types of violets are blue

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

Exploration mission 2;

Ibelieve it would be religious