In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
--------
Question: Question: Dean wants his solution to be as acidic as possible, so his concentration of hydrogen ions will be 
 Answer: higher

Answer: With a higher concentration of hydrogen ions, a solution is more acidic but has a lower pH.


Question: Question: Dan notices that there were no new trees planted this year. Since there are so few trees in the area, Dan expects the air to be 
 Answer: dry

Answer: With fewer trees, the air is drier and droughts are more common.


Question: Question: Greta has 15 resistors in series on her circuit, while Evan has 2 similar resistors in series on his circuit. Whose circuit has the greatest resistance? 
 Answer: Greta

Answer:
Increasing the number of resistors in a series circuit increases the overall resistance of the circuit.