Answer the following question given this paragraph: Q: What is required for communication? A:
OPTIONS:
- transmission and weight of signals
- weight and reception of signals
- lack and reception of signals
- transmission and reception of signals

Answer: transmission and reception of signals

Question: Answer the following question given this paragraph: Many transition metals and their compounds are used as catalysts. Given MnO 2, FeCl3, Pt, and Ni, which would you select for each purpose and why?. Q: Many transition metals and their compounds are used as what? A:
OPTIONS:
- insulators
- bases
- sealants
- catalysts
Answer: catalysts

input with options: Answer the following question given this paragraph: Like fish, amphibians are ectothermic vertebrates. They belong to the class Amphibia. There are three orders:. Q: Which kind of vertebrates are amphibians? A:
OPTIONS:
- endothermic vertebrates
- enterococci vertebrates
- arachnids vertebrates
- ectothermic vertebrates
output: ectothermic vertebrates

Q: Answer the following question given this paragraph: Sodium and chloride ions have equal but opposite charges. Opposites attract, so sodium and chloride ions attract each other. They cling together in a strong ionic bond. You can see this in row 2 of Figure above . Brackets separate the ions in the diagram to show that the ions in the compound do not share electrons. You can see animations of sodium chloride forming at these URLs:. Q: Why do sodium and chloride ions attract each other? A:

OPTIONS:
- sulfides attract
- magnetism
- like attracts like
- opposites attract

A: opposites attract

input: OPTIONS:
- geothermal energy
- mechanical energy
- radiation energy
- potential energy Now, answer this question: Answer the following question given this paragraph: The heating curve shown is for water but other substances have similarly shaped heating curves. Suppose you begin with solid water (ice) at -30C and add heat at a constant rate. The heat you add in the beginning will be absorbed as kinetic energy and the temperature of the solid will increase. When you reach a temperature of 0C (the melting point for water), the heat you add is no longer absorbed as kinetic energy. Instead, the added heat is absorbed as potential energy and the particles separate from each other. During the flat part of the curve labeled "melting", heat is being added constantly but the temperature does not increase. At the left edge of this flat line, the water is solid; by the time enough heat has been added to get to the right edge, the water is liquid, but maintains the same temperature. Once all the water is in the liquid form, the added heat will once again be absorbed as kinetic energy and the temperature will increase again. During the time labeled "water being heated as a liquid", all the added heat is absorbed as kinetic energy. Q: In what form is the heat absorbed when you heat ice and it reaches a temperature of 0 c? A:
A:
output: potential energy

Question: Answer the following question given this paragraph: Most pure nitrogen comes from the fractional distillation of liquid air. The atmosphere consists of 78% nitrogen by volume. This means there are more than 20 million tons of nitrogen over every square mile of the earth's surface. Nitrogen is a component of proteins and of the genetic material (DNA/RNA) of all plants and animals. Under ordinary conditions, nitrogen is a colorless, odorless, and tasteless gas. It boils at 77 K and freezes at 63 K. Liquid nitrogen is a useful coolant because it is inexpensive and has a low boiling point. Nitrogen is very unreactive because of the very strong triple bond between the nitrogen atoms. The only common reactions at room temperature occur with lithium to form Li3N, with certain transition metal complexes, and with hydrogen or oxygen in nitrogenfixing bacteria. The general lack of reactivity of nitrogen makes the remarkable ability of some bacteria to synthesize nitrogen compounds using atmospheric nitrogen gas as the source one of the most exciting chemical events on our planet. This process is one type of nitrogen fixation. In this case, nitrogen fixation is the process where organisms convert atmospheric nitrogen into biologically useful chemicals. Nitrogen fixation also occurs when lightning passes through air, causing molecular nitrogen to react with oxygen to form nitrogen oxides, which are then carried down to the soil. Q: What term describes the process where organisms convert atmospheric nitrogen into biologically useful chemicals? A:
OPTIONS:
- carbon cycle
- cellular respiration
- photosynthesis
- nitrogen fixation
Answer:
nitrogen fixation