With fewer trees, the air is drier and droughts are more common. Having read the above passage, choose the right answer to the following question (choices are more or less ): Terry cuts the trees down in the forest. The air is now more or less dry?
more

(Question)
Alkanes with more carbon atoms have higher boiling and melting points, so some of them are solids at room temperature. Having read the above passage, choose the right answer to the following question (choices are lower or higher ): Dana is testing alkanes to see how they boil. She first heats up alkanes with more carbon atoms, and then some with fewer. The alkanes with more carbon atoms have a boiling point, compared to the other, that is lower or higher?
(Answer)
lower

Ques: As the distance between the objects increases, the force of gravitational attraction decreases. Having read the above passage, choose the right answer to the following question (choices are increases or decreases ): If a car and a truck drive closer to each other, what happens to the gravitational attraction between the two vehicles increases or decreases?
Ans: increases

(Q).
Warm water cant hold as much dissolved oxygen as cool water, so an increase in the temperature of water decreases the amount of oxygen it contains. Having read the above passage, choose the right answer to the following question (choices are 80 degrees fahrenheit or 70 degrees fahrenheit ): Mary is taking measurements of the amount of oxygen in samples of water. If she measured the total levels of dissolved oxygen in a sample at 70 degrees fahrenheit and compared it to a sample at 80 degrees fahrenheit, which would contain more dissolved oxygen 80 degrees fahrenheit or 70 degrees fahrenheit?
(A).
70 degrees fahrenheit

Ques: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 younger or older ): A fossil in the highest layer of rock would be younger or older than one lower down?

Ans:younger

The gravitational force between two objects decreases as the objects move further apart. Having read the above passage, choose the right answer to the following question (choices are increases or decreases ): If Milo is holding two objects close together and he decides to move them farther apart, what happens to the gravitational force between the objects increases or decreases?
decreases