You are given a question or fill-in-the-blank question, two answer options (Option1 and Option2) and an Explanation. Your task is to find the correct answer (return the string of the correct option, not option1/2) for the given question from the given options and using explanation.

Question: Noah compares the density of the water in a pond during a hot July day and a cold winter morning. The water on the July day is 
 Option1: more dense 
 Option2: less dense. 
 Explanation: Lower temperature and higher salinity yield the densest water.
less dense.

Question: Joseph began sanding the plank faster and faster, increasing the friction on the rubbing surface. As he does so, the heat energy 
 Option1: increases 
 Option2: decreases. 
 Explanation: Friction causes the molecules on rubbing surfaces to move faster, so they have more heat energy.
increases

Question: Decreasing the resistance in a series circuit will lead to _____ total current. 
 Option1: more 
 Option2: less 
 Explanation: If we increase the resistance in a series circuit, by adding more resistors, then the total current decreases.

more