Answer the following question given this paragraph: Denitrifying bacteria turn nitrate back into gaseous nitrogen. Q: What causes nitrate to go back to its gaseous nitrogen state? Choices: - phytoflagellate bacteria - decomposers - enzymes - denitrifying bacteria A:
denitrifying bacteria
Answer the following question given this paragraph: Hydrogen has the smallest, lightest atoms of all elements. Pure hydrogen is a colorless, odorless, tasteless gas that is nontoxic but highly flammable. Hydrogen gas exists mainly as diatomic ("two-atom") molecules (H 2 ), as shown in the diagram on the right. Hydrogen is the most abundant element in the universe and the third most abundant element on Earth, occurring mainly in compounds such as water. Q: What has the smallest, lightest atoms of all the elements and is colorless, odorless, tasteless and nontoxic, but highly flammable in its pure state? Choices: - helium - magnesium - barium - hydrogen A:
hydrogen
Q: Answer the following question given this paragraph: mitochondria, myoglobin, and capillary networks in SO fibers. Endurance athletes have a high level of SO fibers relative to the other fiber types. Resistance exercise causes hypertrophy. Power-producing muscles have a higher number of FG fibers than of slow fibers. Strenuous exercise causes muscle cell damage that requires time to heal. Some athletes use performanceenhancing substances to enhance muscle performance. Muscle atrophy due to age is called sarcopenia and occurs as muscle fibers die and are replaced by connective and adipose tissue. Q: Muscle atrophy due to age is called what? Choices: - nymphomania - Increased Atrophy - pepinia - sarcopenia A:
A: sarcopenia
Question: Answer the following question given this paragraph: Electromagnetic waves generally propagate out from a source in all directions, sometimes forming a complex radiation pattern. A linear antenna like this one will not radiate parallel to its length, for example. The wave is shown in one direction from the antenna in Figure 24.7 to illustrate its basic characteristics. Instead of the AC generator, the antenna can also be driven by an AC circuit. In fact, charges radiate whenever they are accelerated. But while a current in a circuit needs a complete path, an antenna has a varying charge distribution forming a standing wave, driven by the AC. The dimensions of the antenna are critical for determining the frequency of the radiated electromagnetic waves. This is a resonant phenomenon and when we tune radios or TV, we vary electrical properties to achieve appropriate resonant conditions in the antenna. Q: A current in a circuit needs a complete what? Choices: - cause - speed - stream - path A:
Answer: path
*Question*
Answer the following question given this paragraph: Plant-like protists are called algae. They include single-celled diatoms and multicellular seaweed. Like plants, they contain chlorophyll and make food by photosynthesis. Types of algae include red and green algae, euglenids, and dinoflagellates. Q: Plant-like protists are called what? Choices: - bacterium - sponge - yeasts - algae A:
**Answer**
algae
*Question*
Answer the following question given this paragraph: Atoms, which are always neutral in electric charge, contain electrons as well as protons and neutrons. An electron has an electrical charge of -1. If an atom has three electrons, infer how many protons it has. Q: What charge do atoms carry? Choices: - negative - static - positive - neutral A:
**Answer**
neutral