Please answer this: John is a chemical engineer with a pharmaceutical company. He is trying to develop a drug that can be absorbed by the system in different rates. To that end, he conducted two experiments. In one case, he used lower concentrations of reactants, he called it case A. Then he used the same reactants in a higher concentration. He called it case B. Would case A have higher or lower rate of reactions than case B?
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Answer: lower
Problem: Keith was a studying for his chemistry exam. He got interested in solubility of different substances. For that, he conducted five tests, test A, test B, test C, test D, and test E. in test A, he used some liquid solute in a solvent in room temperature. Then in test B, he increased the temperature. In test C, he used some gaseous solute in a solvent in room temperature. But in test D, he increased the temperature. Finally, in test E he replaced the solvents in each of the earlier tests with water. In which case the solute would be less soluble, case C or case D?

A: case D
Problem: Given the question: Archaeologists studied data about human settlements. One was 100,000 years old called village R, and the other one was about 9,000 years old called village N. The older settlement was located in Africa, the other one wasn't. Which village had more people that were hunters?
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The answer is:
village R
input question: Scientists studied water stratification in two saltwater lakes. they were trying to find out why the fish population decreased in Long lake, and was very healthy and abundant in Shoal lake. They found out the phenomenon occurred more often in Long lake, leading to very many unpleasant chain effects. Which lake had more denser layers of water????
output answer: Long lake
Robert and John both went to the doctor because they had been having stomach problems. The doctor decided to take images of the men's jejunum to try and diagnose the issues. He discovered that Robert has more villi covering his jejunum compared to John. Who has more surface area available for absorption of nutrients?
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Answer: Robert
Q: Two sisters went in for a medical examination. Mary had normal blood calcium level, but her sister Ann sadly found out that she has a condition named hypercalcaemia. Ann started a new treatment right away. Which sister had excess calcium salts being deposited in the heart?
A:
Ann