With a higher concentration of hydrogen ions, a solution is more acidic but has a lower pH. If you found something with many hydrogen ions it would be basic or acidic?
acidic

(Question)
The pupil automatically gets bigger or smaller to let more or less light in as needed. If Jim's pupil gets smaller, what will happen to the amount of light that enters his eye more light will enter or less light will enter?
(Answer)
less light will enter

Ques: Muscles that are exercised are bigger and stronger than muscles that are not exercised. Jeff is exercising his muscles at the gym. Over time his muscles will grow bigger or smaller?
Ans: bigger

(Q).
Air in the troposphere is warmer closer to Earths surface. When you are driving down a mountain you will notice the temperature decreases or increases?
(A).
increases

Ques:In refraction of light, the greater the change in speed, the more light bends. Ron was playing with a flashlight. He moved it back and forth slowly, and then quickly. Which motion likely caused more light to bend the slow motion or the quick motion?

Ans:the quick motion

With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH. James wants to create a solution that is more acidic than others, so his concentration of hydrogen ions will be higher or lower?
higher