Q: Another way to classify matter is to describe it as a solid, a liquid, or a gas, which was done in the examples of solutions. these three descriptions, each implying that the matter has certain physical properties, represent the three of these? Read this paragraph and choose the correct option from the provided answers: Another way to classify matter is to describe it as a solid, a liquid, or a gas, which was done in the examples of solutions. These three descriptions, each implying that the matter has certain physical properties, represent the three phases of matter. A solid has a definite shape and a definite volume. Liquids ordinarily have a definite volume but not a definite shape; they take the shape of their containers. Gases have neither a definite shape nor a definite volume, and they expand to fill their containers. We encounter matter in each phase every day; in fact, we regularly encounter water in all three phases: ice (solid), water (liquid), and steam (gas). We know from our experience with water that substances can change from one phase to another if the conditions are right. Typically, varying the temperature of a substance (and, less commonly, the pressure exerted on it) can cause a phase change, a physical process in which a substance goes from one phase to another (Figure 1.4 "Boiling Water"). Phase changes have particular names depending on what phases are involved, as summarized in Table 1.1 "Phase Changes". Table 1.1 Phase Changes. Choices: - phases of mass - types of atoms - forms of substances - phases of matter A:
phases of matter

(Question)
Q: Shortening of muscle fibers is called what?' Read this paragraph and choose the correct option from the provided answers: Each muscle in the body is made up of cells called muscle fibers. Muscle fibers are long, thin cells that can do something that other cells cannot dothey are able to get shorter. Shortening of muscle fibers is called contraction . Muscle fibers can contract because they are made of proteins, called actin and myosin, that form long filaments (or fibers). When muscles contract, these protein filaments slide or glide past one another, shortening the length of the cell. When your muscles relax, the length extends back to the previous position. Nearly all movement in the body is the result of muscle contraction. Choices: - diffusion - diffusion - shrinking - contraction A:
(Answer)
contraction

Ques: Q: Did darwin believe in punctuated equilibrium or gradualism? Read this paragraph and choose the correct option from the provided answers: Darwin thought that evolution occurs gradually. This model of evolution is called gradualism. The fossil record better supports the model of punctuated equilibrium. In this model, long periods of little change are interrupted by bursts of rapid change. Choices: - it depended - neither - punctuated equilibrium - gradualism A:
Ans: gradualism

(Q).
Q: What celestial bodies are born in clouds of gas and dust called nebulas? Read this paragraph and choose the correct option from the provided answers: Stars are born in clouds of gas and dust called nebulas. Our Sun and solar system formed out of a nebula. A nebula is shown in Figure below . In Figure above , the fuzzy area beneath the central three stars contains the Orion nebula. Choices: - planets - comets - galaxies - stars A:
(A).
stars

Ques:Q: Zoonotic pathogens are transferred from what to what? Read this paragraph and choose the correct option from the provided answers: Choices: - humans to animals - animals to animals - humans to humans - animals to humans A:

Ans:animals to humans

Ques: Q: How much unpolarized light does a polarized filter block? Read this paragraph and choose the correct option from the provided answers: Polarized filters block 50% of unpolarized light. If two filters are oriented so that their polarization axes are aligned, how much light is transmitted? What about if their axes are oriented perpendicular to each other? Draw two diagrams below to support your answers. Choices: - 40 % - 60 % - 100% - 50% A:
Ans:
50%