Q1. Which of the following country has a greater population density? Country A - 33 people
Country B - 200 people

Q2. Why do you think your chosen country has a great population density?

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

Answerdistinguish between the mercalli scale and the richter scale;