Lower rock layers were laid down earlier, so they are assumed to contain older fossils. Having read the above passage, choose the right answer to the following question (choices are first or last ): Gerald laid down many rock layers. The layers on the top level were likely laid first or last?
last

(Question)
More recently, the death rate has fallen because of the availability of more food and medical advances. Having read the above passage, choose the right answer to the following question (choices are increased or decreased ): Ian's town had more deaths this year since the food supply changed, which means that this year the food amounts were increased or decreased?
(Answer)
decreased

Ques: Lighter, more streamlined vehicles need less energy. Having read the above passage, choose the right answer to the following question (choices are increase or decrease ): Jim is designing a new car and playing around with different materials. If he were to increase the weight of the vehicle, what would happen to the fuel efficiency of that vehicle? It would increase or decrease?
Ans: decrease

(Q).
At higher temperatures, particles of reactants have more energy, so they move faster. They are more likely to bump into one another and to collide with greater force. Having read the above passage, choose the right answer to the following question (choices are the hot particle or the cold particle ): Rich is examining a cold particle and a hot particle. Which likely moves the slowest the hot particle or the cold particle?
(A).
the cold particle

Ques:Warmer molecules vibrate faster than cooler ones. Having read the above passage, choose the right answer to the following question (choices are warmer or colder ): As molecules start moving slower they get warmer or colder?

Ans:colder

Ques:More particles inside the container means more collisions, and more collisions mean a higher pressure. Having read the above passage, choose the right answer to the following question (choices are decreases or increases ): What happens to the pressure inside of Jim's beaker if he increases the amount of collisions between particles inside of it decreases or increases?

Ans:
increases