Answer the following question given this paragraph: The convection zone surrounds the radiative zone. In the convection zone, hot material from near the Sun's center rises. This material cools at the surface, and then plunges back downward. The material then receives more heat from the radiative zone. Q: Hot material from near the sun's center rises in which zone? Choices: - thermosphere - radiative zone - drifting zone - convection zone A:
convection zone
(Question)
Answer the following question given this paragraph: Then, as now, giraffes fed on tree leaves. Perhaps the environment changed, and leaves became scarcer. There would be more giraffes than the trees could support. Thus, there would be a "struggle for existence. ". Q: Are giraffes herbivores or are they omnivores? Choices: - neither - carnivores - omnivores - herbivores A:
(Answer)
herbivores
Ques: Answer the following question given this paragraph: Q: Centipedes have what on their foremost trunk segment, used to paralyze prey and aid in defense? Choices: - board claws - animal claws - diploid claws - poison claws A:
Ans: poison claws
(Q).
Answer the following question given this paragraph: Sound, like all waves, travels at a certain speed and has the properties of frequency and wavelength. You can observe direct evidence of the speed of sound while watching a fireworks display. The flash of an explosion is seen well before its sound is heard, implying both that sound travels at a finite speed and that it is much slower than light. You can also directly sense the frequency of a sound. Perception of frequency is called pitch. The wavelength of sound is not directly sensed, but indirect evidence is found in the correlation of the size of musical instruments with their pitch. Small instruments, such as a piccolo, typically make high-pitch sounds, while large instruments, such as a tuba, typically make low-pitch sounds. High pitch means small wavelength, and the size of a musical instrument is directly related to the wavelengths of sound it produces. So a small instrument creates short-wavelength sounds. Similar arguments hold that a large instrument creates long-wavelength sounds. The relationship of the speed of sound, its frequency, and wavelength is the same as for all waves:. Q: Sound, like all waves, travels at a certain speed and has the properties of frequency and this? Choices: - gravity - momentum - energy - wavelength A:
(A).
wavelength
Ques:Answer the following question given this paragraph: Density is an important physical property of matter. It reflects how closely packed the particles of matter are. When particles are packed together more tightly, matter has greater density. Differences in density of matter explain many phenomena, not just why helium balloons rise. For example, differences in density of cool and warm ocean water explain why currents such as the Gulf Stream flow through the oceans. You can see a colorful demonstration of substances with different densities at this URL:. Q: What term describes how closely packed the particles of matter are? Choices: - range - mass - space - density A:

Ans:density
Answer the following question given this paragraph: which the articulating surfaces of the bones contact each other. Also unlike fibrous or cartilaginous joints, the articulating bone surfaces at a synovial joint are not directly connected to each other with fibrous connective tissue or cartilage. This gives the bones of a synovial joint the ability to move smoothly against each other, allowing for increased joint mobility. Q: Unlike fibrous or cartilaginous joints, the articulating bone surfaces at what joint type are not directly connected to each other with fibrous connective tissue or cartilage? Choices: - proximal joint - knee joint - polymeric joint - synovial joint A:
synovial joint