Ques: Q: What is the long-term average of weather in a particular spot called? Read this paragraph and choose the correct option from the provided answers: Almost anything can happen with the weather. Climate, however, is more predictable. Climate is the long-term average of weather in a particular spot. Good climate is why we choose to vacation in Hawaii in February (usually on the leeward side). Of course, the weather is not guaranteed to be good! A location's climate considers the same characteristics as its weather. These are its air temperature, humidity, wind speed and direction, and the type, quantity, and frequency of precipitation. For climate, these things are averaged over time. Choices: - weather - migration - temperature - climate A:
Ans: climate

Ques: Q: When a star's core collapses inward while the outer layers spread and cool, what "colorful" celestial body forms? Read this paragraph and choose the correct option from the provided answers: Eventually a main sequence star will use up all of its hydrogen. It then starts to fuse helium atoms into larger elements like carbon. At this time, the star's core will collapse inward. The star's outer layers will spread out and cool. The result is a larger star that is cooler on the surface, and red in color. The star is now a red giant . Choices: - blue giant - green giant - white giant - red giant A:
Ans: red giant

Ques: Q: An excellent solvent that holds heat well and allows hydrogen bonds, what substance has many properties critical to life? Read this paragraph and choose the correct option from the provided answers: 2.2 Water Water has many properties that are critical to maintaining life. It is polar, allowing for the formation of hydrogen bonds, which allow ions and other polar molecules to dissolve in water. Therefore, water is an excellent solvent. The hydrogen bonds between water molecules give water the ability to hold heat better than many other substances. As the temperature rises, the hydrogen bonds between water continually break and reform, allowing for the overall temperature to remain stable, although increased energy is added to the system. Water's cohesive forces allow for the property of surface tension. All of these unique properties of water are important in the chemistry of living organisms. The pH of a solution is a measure of the concentration of hydrogen ions in the solution. A solution with a high number of hydrogen ions is acidic and has a low pH value. A solution with a high number of hydroxide ions is basic and has a high pH value. The pH scale ranges from 0 to 14, with a pH of 7 being neutral. Buffers are solutions that moderate pH changes when an acid or base is added to the buffer system. Buffers are important in biological systems because of their ability to maintain constant pH conditions. Choices: - liquid - blood - plasma - water A:
Ans: water

Ques: Q: What is the name of the liquid component of a solution? Read this paragraph and choose the correct option from the provided answers: Solutions can also be comprised of a solid solute and a liquid solvent. These interactions are governed by the same three interactions we discussed earlier: polar-polar, nonpolar-polar, and nonpolar-nonpolar. The Table below describes these interactions. Choices: - ionic - reactant - solute - solvent A:
Ans:
solvent