Q: What is the second class of fish after ray-finned fish? Read this paragraph and choose the correct option from the provided answers: There are about 27,000 species of bony fish ( Figure below ), which are divided into two classes: ray-finned fish and lobe-finned fish. Most bony fish are ray-finned. These thin fins consist of webs of skin over flexible spines. Lobe-finned fish, on the other hand, have fins that resemble stump-like appendages. Choices: - pine - finned fish - spar - finned fish - star-finned fish - lobe-finned fish A:
lobe-finned fish

(Question)
Q: Reaching conclusions about unobserved things on the basis of what has already been observed is known as what kind of reasoning? Read this paragraph and choose the correct option from the provided answers: Inductive reasoning involves reaching conclusions about unobserved things on the basis of what has already been observed. Induction is used regularly in fields such as archaeology, where inferences about the past from present are made. Inductions could also be made across outer space, as in astronomy, where conclusions about the whole universe are drawn from the limited number of observations we are able to make. Choices: - primitive - reductive - conductive - inductive A:
(Answer)
inductive

Ques: Q: What happens to the electrical conductivity of metals when placed in a pot of boiling water? Read this paragraph and choose the correct option from the provided answers: levels. If a solid has a filled valence band with a relatively low-lying empty band above it (a conduction band), then electrons can be excited by thermal energy from the filled band into the vacant band where they can then migrate through the crystal, resulting in electrical conductivity. Electrical insulators are poor conductors because their valence bands are full. Semiconductors have electrical conductivities intermediate between those of insulators and metals. The electrical conductivity of semiconductors increases rapidly with increasing temperature, whereas the electrical conductivity of metals decreases slowly with increasing temperature. The properties of semiconductors can be modified by doping, or introducing impurities. Adding an element with more valence electrons than the atoms of the host populates the conduction band, resulting in an n-type semiconductor with increased electrical conductivity. Adding an element with fewer valence electrons than the atoms of the host generates holes in the valence band, resulting in a p-type semiconductor that also exhibits increased electrical conductivity. Choices: - stays the same - increases slowly - increases quickly - decreases slowly A:
Ans: decreases slowly

(Q).
Q: The addition of heat changes liquid water to what? Read this paragraph and choose the correct option from the provided answers: Choices: - rainwater - ice - distilled water - water vapor A:
(A).
water vapor

Ques:Q: Photochemical smog consists mainly of what? Read this paragraph and choose the correct option from the provided answers: Secondary pollutants form from primary pollutants. Many occur as part of photochemical smog . This type of smog is seen as a brown haze in the air. Photochemical smog forms when certain pollutants have a chemical reaction in the presence of sunlight. Photochemical smog consists mainly of ozone (O 3 ). Ozone near the ground is a pollutant ( Figure below ). This ozone is harmful to humans and other living things. However, ozone in the stratosphere protects Earth from the Sun's harmful ultraviolet radiation. Choices: - acid - oxygen - carbon - ozone A:

Ans:ozone

Question: Q: Bacterial stis include chlamydia, gonorrhea, and syphilis are diseases that can usually be cured with what? Read this paragraph and choose the correct option from the provided answers: Bacterial STIs include chlamydia, gonorrhea, and syphilis. These diseases usually can be cured with antibiotics. Choices: - antivirals - antihistamines - antioxidants - antibiotics A:
Answer:
antibiotics