Answer the following question given this paragraph: Sound intensity levels are quoted in decibels (dB) much more often than sound intensities in watts per meter squared. Decibels are the unit of choice in the scientific literature as well as in the popular media. The reasons for this choice of units are related to how we perceive sounds. How our ears perceive sound can be more accurately described by the logarithm of the intensity rather than directly to the intensity. The sound intensity level in decibels of a sound having an intensity I in watts per meter squared is defined to be. Q: What is the measure of sound intensity levels? Choices: - octaves - moles - centimeters - decibels A:
decibels
(Question)
Answer the following question given this paragraph: Transition metals include the elements that are placed below the periodic table. Those that follow lanthanum (La) are called lanthanides. They are all shiny, relatively reactive metals. Those that follow Actinium (Ac) are called actinides. They are all radioactive metals. This means they are unstable. They break down into different, more stable elements. You can read more about radioactive elements in the chapter Nuclear Chemistry . Many of the actinides do not occur in nature but are made in laboratories. Q: What do you call the metal elements listed below the periodic table? Choices: - rare metals - shift metals - process metals - transition metals A:
(Answer)
transition metals
Ques: Answer the following question given this paragraph: Q: What type of mammals includes opossums, kangaroos, and koalas? Choices: - crustaceans - arthropods - monotremes - marsupials A:
Ans: marsupials
(Q).
Answer the following question given this paragraph: In unsaturated fatty acids, there is at least one double bond between carbon atoms. As a result, some carbons are not bonded to as many hydrogen atoms as possible. Unsaturated fatty acids are found in oils. Oils are liquid lipids that plants use to store energy. Q: Oils are liquid lipids that plants use for storage of what? Choices: - fat - glucose - oxygen - energy A:
(A).
energy
Ques:Answer the following question given this paragraph: Barbecued foods are cooked at very high temperatures. This may cause carcinogens to form. Q: What kind of potentially harmful compounds can barbecuing food create? Choices: - mutagens - triglycerides - enzymes - carcinogens A:

Ans:carcinogens
Ques:Answer the following question given this paragraph: Class Bivalvia ("two shells") includes clams, oysters, mussels, scallops, and geoducks. Members of this class are found in marine as well as freshwater habitats. As the name suggests, bivalves are enclosed in a pair of shells (valves are commonly called "shells") that are hinged at the dorsal end by shell ligaments as well as shell teeth (Figure 28.22). The overall morphology is laterally flattened, and the head region is poorly developed. Eyespots and statocysts may be absent in some species. Since these animals are suspension feeders, a radula is absent in this class of mollusks. Respiration is facilitated by a pair of ctenidia, whereas excretion and osmoregulation are brought about by a pair of nephridia. Bivalves often possess a large mantle cavity. In some species, the posterior edges of the mantle may fuse to form two siphons that serve to take in and exude water. Q: Class bivalvia ("two shells") includes clams, oysters, mussels, scallops, and these? Choices: - grendels - crabs - octopuss - geoducks A:

Ans:
geoducks