Problem: OPTIONS:
- magnetic force
- humidity
- water
- air
Q: Answer the following question given this paragraph: 11.4 Variation of Pressure with Depth in a Fluid If your ears have ever popped on a plane flight or ached during a deep dive in a swimming pool, you have experienced the effect of depth on pressure in a fluid. At the Earth's surface, the air pressure exerted on you is a result of the weight of air above you. This pressure is reduced as you climb up in altitude and the weight of air above you decreases. Under water, the pressure exerted on you increases with increasing depth. In this case, the pressure being exerted upon you is a result of both the weight of water above you and that of the atmosphere above you. You may notice an air pressure change on an elevator ride that transports you many stories, but you need only dive a meter or so below the surface of a pool to feel a pressure increase. The difference is that water is much denser than air, about 775 times as dense. Consider the container in Figure 11.10. Its bottom supports the weight of the fluid in it. Let us calculate the pressure exerted on the bottom by the weight of the fluid. That pressure is the weight of the fluid mg divided by the area A supporting it (the area of the bottom of the container):. Q: At the earth's surface, the air pressure exerted on you is a result of the weight of what above you? A:
Answer: air

Problem:OPTIONS:
- extremities
- lung
- brain
- heart

Answer the following question given this paragraph: Veins are blood vessels that carry blood toward the heart. This blood is no longer under much pressure, so many veins have valves that prevent backflow of blood. Veins generally carry deoxygenated blood. The largest vein is the inferior vena cava, which carries blood from the lower body to the heart. Q: Veins are blood vessels that carry blood toward what? A:
****
A: heart

Answer the following question given this paragraph: 20.3 Terrestrial Biomes Earth has terrestrial and aquatic biomes. Aquatic biomes include both freshwater and marine environments. There are eight major terrestrial biomes: tropical rainforests, savannas, subtropical deserts, chaparral, temperate grasslands, temperate forests, boreal forests, and Arctic tundra. The same biome can occur in different geographic locations with similar climates. Temperature and precipitation, and variations in both, are key abiotic factors that shape the composition of animal and plant communities in terrestrial biomes. Some biomes, such as temperate grasslands and temperate forests, have distinct seasons with cold and hot weather alternating throughout the year. In warm, moist biomes, such as the tropical rainforest, net primary productivity is high as warm temperatures, abundant water, and a year-round growing season fuel plant growth. Other biomes, such as deserts and tundra, have low primary productivity due to extreme temperatures and a shortage of water. Q: Terrestrial biomes are associated with land, while aquatic ones are associated with what? A:
OPTIONS:
- plants
- air
- blood
- water
water

Answer the following question given this paragraph: The yellow subunits are identical in structure, as are the gray subunits. A smaller organic structure called a porphyrin ring is attached to each protein subunit and contains the iron ion used to bind oxygen. Q: The iron ion used to bind oxygen is on what type of "ring"? A:
OPTIONS:
- DNA ring
- petrarchan ring
- reagent ring
- porphyrin ring

Answer: porphyrin ring

Question: Answer the following question given this paragraph: If a molecule can pass freely through a cell membrane, it will cross the membrane by diffusion ( Figure below ). The inside of the plasma membrane is hydrophobic, so certain molecules cannot easily pass through the membrane. Recall the semipermeable nature of the lipid bilayer. Molecules that cannot easily pass through the bilayer include ions and small hydrophilic molecules, such as glucose, and macromolecules, including proteins and RNA. Examples of molecules that can easily diffuse across the plasma membrane include carbon dioxide and oxygen gas. These molecules diffuse freely in and out of the cell, along their concentration gradient. Though water is a polar molecule, it can also diffuse through the plasma membrane. The diffusion of water through the cell membrane is of such importance to the cell that it is given a special name, osmosis . Q: What is the special name given to the diffusion of water through the cell membrane? A:
OPTIONS:
- hemostasis
- passive transport
- electrolysis
- osmosis
Answer: osmosis

input: OPTIONS:
- hydrogen
- helium
- oxygen
- carbon Now, answer this question: Answer the following question given this paragraph: Inorganic chemistry is the study of chemicals that do not, in general, contain carbon. Inorganic chemicals are commonly found in rocks and minerals. One current important area of inorganic chemistry deals with the design and properties of materials involved in energy and information technology. Q: Inorganic chemistry refers to the study of materials *not* containing which element? A:
A:
output:
carbon