With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH. If Jim wants to raise the pH of his solution he should do what to the concentration of hydrogen ions inside of it decrease or increase?
decrease

Breast cancer is rare in teens. It becomes more common as women get older. Sue is celebrating her 16th birthday. She likely has a greater or lesser chance of breast cancer than when she turns 60?
lesser

Q: More advanced farming practices allowed a single farmer to grow food for many more people. A farmer, using the newest farming practices, can expect to grow more or less crops?
A: more

Question: The stratosphere contains the ozone layer, the temperatures increase as altitude increases. As you travel through the ozone layer the temperatures become higher or lower?
Answer: higher

*Question*
It would be hard to get a big chunk of chocolate to dissolve in your milk or hot water. Maybe you could make hot chocolate from some smaller pieces like chocolate chips, but it is much easier to add a powder to your milk. This is because the smaller the pieces are, the more surface area they have. Mary melts a 1 pound chocolate bar and 1 pound of chocolate chips in two pots. Which melts first bar or chips?
**Answer**
chips

*Question*
As you go farther from the nucleus of an atom, the electron levels have more and more energy. The electron levels closest to the nucleus of an atom have more or less energy than those further away?
**Answer**
less