Ques: New farm machines were invented. They increased the amount of food that could be produced. With more food, people were healthier and could live longer. An increase in food will likely lead to shorter or longer lifespans?
Ans: longer

Ques: For bases we can state the folllowing: The higher the pH of a substance, the more basic it is. Sue measured water to be a pH of 7, and she measured bleach at a pH of 11. Which substance is less basic water or bleach?
Ans: water

Ques: Bacteria with a mutation the helps resist antibiotics increase in numbers, so the mutation becomes more common. If there are more bacteria with the right mutation, will the occurrence of the mutation become more or less?
Ans: more

Ques: The smaller its mass is, the greater its acceleration for a given amount of force. If Milo is racing cars on a track and one car has more mass then another, what does that tell him about the larger cars acceleration potential compared to the smaller car it's higher or it's lower?
Ans:
it's lower