Answer the following question given this paragraph: The energy of sound waves spreads out over a greater area as the waves travel farther from the sound source. This diagram represents just a small section of the total area of sound waves spreading out from the source. Sound waves actually travel away from the source in all directions. As distance from the source increases, the area covered by the sound waves increases, lessening their intensity. Q: As distance from the source increases, the area covered by the sound waves increases, lessening what? Choices: - velocity - density - duration - intensity A:
intensity
(Question)
Answer the following question given this paragraph: Temperature falls from the equator to the poles. Therefore, major temperature zones are based on latitude. They include tropical, temperate, and arctic zones (see Figure below ). However, other factors besides latitude may also influence temperature. For example, land near the ocean may have cooler summers and warmer winters than land farther inland. This is because water gains and loses heat more slowly than does land, and the water temperature influences the temperature on the coast. Temperature also falls from lower to higher altitudes. That's why tropical zone mountain tops may be capped with snow. Q: Water gains and loses what more slowly than does land, affecting seasonal conditions inland and on the coast? Choices: - volume - humidity - minerals - heat A:
(Answer)
heat
Ques: Answer the following question given this paragraph: The first amino acid to be isolated was asparagine in 1806. It was obtained from protein found in asparagus juice (hence the name). Glycine, the major amino acid found in gelatin, was named for its sweet taste (Greek glykys, meaning "sweet"). In some cases an amino acid found in a protein is actually a derivative of one of the common 20 amino acids (one such derivative is hydroxyproline). The modification occurs after the amino acid has been assembled into a protein. Q: What was the first amino acid to be isolated? Choices: - histamine - histon - glutathione - asparagine A:
Ans: asparagine
(Q).
Answer the following question given this paragraph: Figure 27.45 illustrates how the component of the electric field parallel to the long molecules is absorbed. An electromagnetic wave is composed of oscillating electric and magnetic fields. The electric field is strong compared with the magnetic field and is more effective in exerting force on charges in the molecules. The most affected charged particles are the electrons in the molecules, since electron masses are small. If the electron is forced to oscillate, it can absorb energy from the EM wave. This reduces the fields in the wave and, hence, reduces its intensity. In long molecules, electrons can more easily oscillate parallel to the molecule than in the perpendicular direction. The electrons are bound to the molecule and are more restricted in their movement perpendicular to the molecule. Thus, the electrons can absorb EM waves that have a component of their electric field parallel to the molecule. The electrons are much less responsive to electric fields perpendicular to the molecule and will allow those fields to pass. Thus the axis of the polarizing filter is perpendicular to the length of the molecule. Q: What kinds of waves are composed of various oscillating electric and magnetic fields? Choices: - elastic - seismic - tidal - electromagnetic A:
(A).
electromagnetic
Ques:Answer the following question given this paragraph: The length traveled by an object moving in any direction or even changing direction is called distance. Q: The length that an object has travelled in one or multiple directions can also be called what? Choices: - axis - velocity - range - distance A:

Ans:distance
Ques: Answer the following question given this paragraph: Thomas Quine (Flickr:quinet). Bees are important pollinators of flowering plants . CC BY 2.0. Q: What do bees do for flowering plants? Choices: - eat - create - feed - pollinate A:
Ans:
pollinate