Answer the following question given this paragraph: All volcanoes share the same basic features. First, mantle rock melts. The molten rock collects in magma chambers that can be 160 kilometers (100 miles) beneath the surface. As the rock heats, it expands. The hot rock is less dense than the surrounding rock. The magma rises toward the surface through cracks in the crust. A volcanic eruption occurs when the magma reaches the surface. Lava can reach the surface gently or explosively. Q: When magma reaches the surface through cracks in the earth's crust, what occurs? Choices: - volcanic explosion - magma eruption - tsunami - volcanic eruption A:
volcanic eruption
Answer the following question given this paragraph: Q: The final stage of labor is delivery of the what? Choices: - uterus - umbilical cord - embryo - placenta A:
placenta
Q: Answer the following question given this paragraph: If two monosaccharides bond together, they form a carbohydrate called a disaccharide . An example of a disaccharide is sucrose (table sugar), which consists of the monosaccharides glucose and fructose ( Figure above ). Monosaccharides and disaccharides are also called simple sugars . They provide the major source of energy to living cells. Q: What do you call the carbohydrate formed when two monosaccharides bond together? Choices: - calcite - glucose - hydroxyl - disaccharide A:
A: disaccharide
Question: Answer the following question given this paragraph: The interior space that surrounds the thylakoids is filled with a fluid called stroma . This is where carbon dioxide is used to produce glucose, the second part of photosynthesis. Q: Fluid-filled thylakoids are the site of glucose production in the second stage of what process? Choices: - measurements - glycolysis - birth - photosynthesis A:
Answer: photosynthesis
*Question*
Answer the following question given this paragraph: Sensory organs such as the eyes and ears are part of the nervous system. The nervous system controls all other body systems. However, the nervous system doesn't work alone. The endocrine system also helps to regulate the body and its functions. Q: The various sensory organs are part of what organ system? Choices: - digestive - lymphatic - respiratory - nervous A:
**Answer**
nervous
(Q).
Answer the following question given this paragraph: Abundance The elements vary widely in abundance. In the universe as a whole, the most common element is hydrogen (about 90% of atoms), followed by helium (most of the remaining 10%). All other elements are present in relatively minuscule amounts, as far as we can detect. On the planet Earth, however, the situation is rather different. Oxygen makes up 46.1% of the mass of Earth's crust (the relatively thin layer of rock forming Earth's surface), mostly in combination with other elements, while silicon makes up 28.5%. Hydrogen, the most abundant element in the universe, makes up only 0.14% of Earth's crust. Table 2.1 "Elemental Composition of Earth" lists the relative abundances of elements on Earth as a whole and in Earth's crust. Table 2.2 "Elemental Composition of a Human Body" lists the relative abundances of elements in the human body. If you compare Table 2.1 "Elemental Composition of Earth" and Table 2.2 "Elemental Composition of a Human Body", you will find disparities between the percentage of each element in the human body and on Earth. Oxygen has the highest percentage in both Saylor URL: http://www. saylor. org/books. Q: In the universe as a whole, what is the most common element? Choices: - helium - carbon - oxygen - hydrogen A:
(A).
hydrogen