Answer the following question given this paragraph: We know from seismic waves produced by earthquakes that parts of the interior of the Earth are liquid. Shear or transverse waves cannot travel through a liquid and are not transmitted through the Earth's core. Yet compression or longitudinal waves can pass through a liquid and do go through the core. From this information, the temperature of the interior can be 9 estimated. As noticed, the interior should have cooled more from its initial temperature in the 4.510 years since its 9 formation. In fact, it should have taken no more than about 10 years to cool to its present temperature. What is keeping it hot? The answer seems to be radioactive decay of primordial elements that were part of the material that formed the Earth (see the blowup in Figure 31.26). Nuclides such as 238 U and 40 K have half-lives similar to or longer than the age of the Earth, and their decay still contributes energy to the interior. Some of the primordial radioactive nuclides have unstable decay products that also release energy 238 U has a long decay chain of these. Further, there were more of these primordial radioactive nuclides early in the life of the Earth, and thus the activity and energy contributed were greater then (perhaps by an order of magnitude). The amount of power created by these decays per cubic meter is very small. However, since a huge volume of material lies deep below the surface, this relatively small amount of energy cannot escape quickly. The power produced near the surface has much less distance to go to escape and has a negligible effect on surface temperatures. Q: We know from what type of waves produced by earthquakes that parts of the interior of the earth are liquid? Choices: - volcanic - electromagnetic - kinetic - seismic A:
seismic
Answer the following question given this paragraph: An ideal gas is one that follows the gas laws at all conditions of temperature and pressure. To do so, the gas would need to completely abide by the kinetic-molecular theory. The gas particles would need to occupy zero volume and they would need to exhibit no attractive forces what so ever toward each other. Since neither of those conditions can be true, there is no such thing as an ideal gas. A real gas is a gas that does not behave according to the assumptions of the kinetic-molecular theory. Fortunately, at the conditions of temperature and pressure that are normally encountered in a laboratory, real gases tend to behave very much like ideal gases. Q: What is the term for a gas that completely abides by the kinetic-molecular theory? Choices: - heat gas - cold gas - fast gas - ideal gas A:
ideal gas
Q: Answer the following question given this paragraph: Q: Metabolic cooperation between different prokaryotic species often occurs in surface-coating colonies. what are these colonies called? Choices: - eukaryotes - lichens - plankton - biofilms A:
A: biofilms
Question: Answer the following question given this paragraph: The pupil is an opening in the front of the eye. It looks black because it doesn't reflect any light. All the light passes through it instead. The pupil controls the amount of light that enters the eye. It automatically gets bigger or smaller to let more or less light in as needed. Q: What is the opening in the front of the eye called? Choices: - lens - cornea - iris - pupil A:
Answer: pupil
*Question*
Answer the following question given this paragraph: Disposing of industrial waste is one way that human actions pollute the land. This became clear more than 30 years ago in Love Canal, a neighborhood in Niagara Falls, New York. Love Canal may sound lovely, but it is not. Love Canal was and is a disaster. Love Canal been called one of the worst environmental disasters of all time. Q: Love canal was an infamous example of what type of pollution? Choices: - thermal pollution - Land Pollution - Visual Pollution - industrial waste dumping A:
**Answer**
industrial waste dumping
Answer the following question given this paragraph: Carbon sequestration is any way of removing carbon dioxide from the atmosphere and storing it in another form. Carbon is sequestered naturally by forests. Trees take in carbon dioxide for photosynthesis. Artificial methods of sequestering carbon underground are being researched. Q: What term refers to any method of removing carbon dioxide from the atmosphere and storing it in another form? Choices: - carbon footprint - carbon metamorphosis - carbon transfer - carbon sequestration A:
carbon sequestration