Question: Answer the following question given this paragraph: You might think that actions and reactions would cancel each other out like balanced forces do. Balanced forces, which are also equal and opposite, cancel each other out because they act on the same object. Action and reaction forces, in contrast, act on different objects, so they don't cancel each other out and, in fact, often result in motion. For example, in Figure above , the kangaroo's action acts on the ground, but the ground's reaction acts on the kangaroo. As a result, the kangaroo jumps away from the ground. One of the action-reaction examples in the Figure above does not result in motion. Do you know which one it is?. Q: What kind of equal and opposite forces cancel one another out when they act on the same object? A:
OPTIONS:
- solid
- exact
- combined
- balanced
Answer: balanced

input with options: Answer the following question given this paragraph: Q: The rest of the energy stored in glucose is lost as what? A:
OPTIONS:
- mass
- volume
- humidity
- heat
output: heat

Q: Answer the following question given this paragraph: Volcanic eruptions can be non-explosive or explosive depending on the thickness of the magma. Q: What determines whether a volcanic eruption will be explosive or not? A:

OPTIONS:
- lava temperature
- magma velocity
- curve of magma
- thickness of magma

A: thickness of magma

input: OPTIONS:
- doubles
- no change
- increases
- decreases Now, answer this question: Answer the following question given this paragraph: When additional water is added to an aqueous solution, the concentration of that solution decreases. This is because the number of moles of the solute does not change, while the volume of the solution increases. We can set up an equality between the moles of the solute before the dilution (1) and the moles of the solute after the dilution (2). Q: When additional water is added to an aqueous solution, what happens to the concentration of that solution? A:
A:
output: decreases

Answer the following question given this paragraph: The Sun is at the center of the solar system. Q: What is at the center of our solar system? A:

OPTIONS:
- the moon
- earth
- the Kuiper Belt
- the sun

Answer: the sun

Q: Answer the following question given this paragraph: The placenta develops throughout the embryonic period and during the first several weeks of the fetal period; placentation is complete by weeks 1416. As a fully developed organ, the placenta provides nutrition and excretion, respiration, and endocrine function (Table 28.1 and Figure 28.12). It receives blood from the fetus through the umbilical arteries. Capillaries in the chorionic villi filter fetal wastes out of the blood and return clean, oxygenated blood to the fetus through the umbilical vein. Nutrients and oxygen are transferred from maternal blood surrounding the villi through the capillaries and into the fetal bloodstream. Some substances move across the placenta by simple diffusion. Oxygen, carbon dioxide, and any other lipid-soluble substances take this route. Other substances move across by facilitated diffusion. This includes water-soluble glucose. The fetus has a high demand for amino acids and iron, and those substances are moved across the placenta by active transport. Maternal and fetal blood does not commingle because blood cells cannot move across the placenta. This separation prevents the mother's cytotoxic T cells from reaching and subsequently destroying the fetus, which bears "non-self" antigens. Further, it ensures the fetal red blood cells do not enter the mother's circulation and trigger antibody development (if they carry "non-self" antigens)at least until the final stages of pregnancy or birth. This is the reason that, even in the absence of preventive treatment, an Rh mother doesn't develop antibodies that could cause hemolytic disease in her first Rh+ fetus. Although blood cells are not exchanged, the chorionic villi provide ample surface area for the two-way exchange of substances between maternal and fetal blood. The rate of exchange increases throughout gestation as the villi become thinner and increasingly branched. The placenta is permeable to lipid-soluble fetotoxic substances: alcohol, nicotine, barbiturates, antibiotics, certain pathogens, and many other substances... Q: Capillaries in the chorionic villi filter fetal wastes out of the blood and return clean, oxygenated blood to the fetus through what? A:

OPTIONS:
- separates vein
- Back Vein
- skin vein
- umbilical vein

A:
umbilical vein