Answer the following question given this paragraph: The process in which rocks or other solids change to liquids is called melting. Melting occurs when particles of a solid absorb enough energy to partly overcome the force of attraction holding them together. This allows them to move out of their fixed positions and slip over one another. Melting, like other changes of state, is a physical change in matter, so it doesn't change the chemical makeup or chemical properties of matter. Q: At what temperature does solid water melt to a liquid? Choices: - below 32 degrees c - below 0 degrees c - above 32 degrees c - at temperatures above 0 degrees c A:
at temperatures above 0 degrees c
Answer the following question given this paragraph: Although this cartoon pokes fun at scientific hypotheses, the concept of hypothesis is one of the most important in science. Scientific investigations discover evidence that helps science advance, and the purpose of scientific investigations generally is to test hypotheses. Finding evidence to support or disprove hypotheses is how science advances. Q: The purpose of scientific investigations generally is to test a what? Choices: - theory - question - suggestion - hypothesis A:
hypothesis
Q: Answer the following question given this paragraph: Forensic Scientist Forensic science is the application of science to answer questions related to the law. Biologists as well as chemists and biochemists can be forensic scientists. Forensic scientists provide scientific evidence for use in courts, and their job involves examining trace material associated with crimes. Interest in forensic science has increased in the last few years, possibly because of popular television shows that feature forensic scientists on the job. Also, the development of molecular techniques and the establishment of DNA databases have updated the types of work that forensic scientists can do. Their job activities are primarily related to crimes against people such as murder, rape, and assault. Their work involves analyzing samples such as hair, blood, and other body fluids and also processing DNA (Figure 1.13) found in many different environments and materials. Forensic scientists also analyze other biological evidence left at crime scenes, such as insect parts or pollen grains. Students who want to pursue careers in forensic science will most likely be required to take chemistry and biology courses as well as some intensive math courses. Q: What type of science is the application of science to answer questions related to the law? Choices: - ecology - biologic - physics - forensic A:
A: forensic
Question: Answer the following question given this paragraph: Lipids are organic compounds that contain mainly carbon, hydrogen, and oxygen. They include substances such as fats and oils, as well as waxes, sterols, some vitamins (A, D, E and K) and phospholipids. Lipid molecules consist of fatty acids, with or without additional molecules. Fatty acids are organic compounds that have the general formula CH 3 (CH 2 ) n COOH, where n usually ranges from 2 to 28 and is always an even number. Q: What elements do lipids primarily consist of? Choices: - silicon, hydrogen , and oxygen - iron, hydrogen , and oxygen - helium, hydrogen , and oxygen - carbon, hydrogen, and oxygen A:
Answer: carbon, hydrogen, and oxygen
*Question*
Answer the following question given this paragraph: Much of Earth's surface is covered with oceans. That's why Earth is called the "water planet. " Without all that water, Earth would be a very different place. The oceans affect Earth's atmosphere and influence its climate. An incredible diversity of living things inhabit the ocean as well. You might think that oceans have always covered Earth's surface, but you would be wrong!. Q: The oceans affect earth's atmosphere and influence its what? Choices: - earthquakes - mountains - volcanoes - climate A:
**Answer**
climate
(Question)
Answer the following question given this paragraph: Q: What can lead to a loss of genetic variation within populations? Choices: - migration - adaptation - natural selection - genetic drift A:
(Answer)
genetic drift