When a volume of water is cooled, the molecules move less vigorously, so same number of molecules takes up less space and the water is denser. Having read the above passage, choose the right answer to the following question (choices are less dense or more dense ): When we lower the temperature of water it becomes less dense or more dense?
more dense

Higher-frequency waves have more energy. Having read the above passage, choose the right answer to the following question (choices are more or less ): Andy is noticing that all of the waves in the area are lower-frequency waves. Andy can then deduce that these waves have energy that is more or less?
less

Q: Wave frequency can be measured by counting the number of crests or compressions that pass the point in 1 second or other time period. The higher the number is, the greater is the frequency of the wave. Having read the above passage, choose the right answer to the following question (choices are increases or decreases ): As waves get larger the frequency of them increases or decreases?
A: decreases

Question: In a series circuit, the resistance increases as more resistors are added in series. Having read the above passage, choose the right answer to the following question (choices are increased or decreased ): By removing twenty more resistors from the series circuit in series, the total resistance of the circuit was increased or decreased?
Answer: decreased

*Question*
The Earth travels faster in its elliptical orbit when it is closer to the Sun than when it is farther away. Having read the above passage, choose the right answer to the following question (choices are Higher or Lower ): John was watching the planets rotate around the sun. He noticed that was the distance between the sun and earth is lower, the speed of Earth is Higher or Lower?
**Answer**
Higher

(Q).
Natural selection is the process by which living things with beneficial traits produce more offspring, so their traits become more common over time. Having read the above passage, choose the right answer to the following question (choices are less or more ): Ray analyzed the color of moths for a project. He notices that black moths produce more adult offspring than white ones. The white moth's traits will likely become less or more common over time?
(A).
less