Acids have pH values below 7. The lower the pH value, the more strongly acidic the substance.  Having read the above passage, choose the right answer to the following question (choices are increases or decreases ):   If Mary is cleaning her pool and she lowers the pH value of the water, what happens to the acidity of the water increases or decreases?
increases

Bigger stars produce more energy, so their surfaces are hotter.  Having read the above passage, choose the right answer to the following question (choices are Star A or Star B ):   Annette took temperature readings of two different stars far off in the Milky Way galaxy. Star B produced twice the energy of Star A, so Star A or Star B was seen to have the higher temperature?
Star B

Q: Faster-moving water has more energy.  Having read the above passage, choose the right answer to the following question (choices are they will decrease or they will increase ):   If Jim opens his water tap so that the water moves slower, what will happen to the energy levels of the water they will decrease or they will increase?
A: they will decrease

Question: The sooner cancer is treated, the greater the chances of a cure.  Having read the above passage, choose the right answer to the following question (choices are higher or lower ):   Tina had her cancer discovered early. Her chances of a cure are likely higher or lower than if she had found it later?
Answer: higher

*Question*
But the more computing power that goes into the model and the care with which the scientists construct the model can increase the chances that a model will be accurate.  Having read the above passage, choose the right answer to the following question (choices are more accurate or less accurate ):   When we use a lot of technology to measure something it becomes more accurate or less accurate?
**Answer**
more accurate

(Question)
Fossils found at the lowest layer of rock would be the oldest, as these would have been buried for the longest time, whereas fossils found closer to the surface would be buried more recently and therefore be younger.  Having read the above passage, choose the right answer to the following question (choices are youngest or oldest ):   Everett went lower and lower to look at the rocks on the cliff. The highest rocks are likely youngest or oldest?
(Answer)
youngest