Answer the following question given this paragraph: The adult human skeleton includes 206 bones and other tissues. It supports the body, protects internal organs, produces blood cells, and maintains mineral homeostasis. Q: How many bones make up an adult human skeleton? Choices: - 244 - 130 - 186 - 206 A:
206
Answer the following question given this paragraph: The amount of stress on a rock may be greater than the rock's strength. In that case, the rock will change and deform ( Figure below ). Deep within the Earth, the pressure is very great. A rock behaves like a stretched rubber band. When the stress stops, the rock goes back to its original shape. If more stress is applied to the rock, it bends and flows. It does not return to its original shape. Near the surface, if the stress continues, the rock will fracture and break. Q: What is applied to a rock to make it bend and flow? Choices: - phosphorus - weathering - acid - stress A:
stress
Q: Answer the following question given this paragraph: Gas bubbles get bigger when they are under less pressure. Q: If everything in a system stays the same but the pressure deceases, gas bubbles will change in what way? Choices: - they multiply - they pop - they get smaller - they get bigger A:
A: they get bigger
Question: Answer the following question given this paragraph: It should be noted that just because a process is spontaneous does not mean that it occurs quickly. The rusting of iron is a spontaneous process that takes place over a long period of time. The combustion of gasoline in oxygen (also a spontaneous process) is extremely fast when provided with a spark, but gasoline can be stored in air for quite a while without spontaneously combusting. Thermodynamics predicts the direction in which a reaction will eventually proceed, but it does not tell us anything about the rate at which the reaction occurs. The rate of a reaction depends on many factors, including activation energy, temperature, concentration, and the presence or absence of a catalyst. Chemical kinetics focuses on the pathway between reactants and products, while thermodynamics considers only the difference between the initial and final states. Q: Thermodynamics do not give us any insight into what attribute of spontaneous processes? Choices: - acceleration - decrease - increase - rate A:
Answer: rate
*Question*
Answer the following question given this paragraph: The digestive system of birds is unique, with a gizzard that contains swallowed stones for grinding food. Birds do not have teeth. What do you think the stones do? They help them digest their food. Defining characteristics of modern birds also include:. Q: What does the gizzard in birds contain that allows them to grind food? Choices: - acid - bile - teeth - swallowed stones A:
**Answer**
swallowed stones
(Question)
Answer the following question given this paragraph: Radar stands for ra dio d etection and r anging. In police radar, a radar gun sends out short bursts of microwaves. The microwaves reflect back from oncoming vehicles and are detected by a receiver in the radar gun. The frequency of the reflected waves is used to compute the speed of the vehicles. Radar is also used for tracking storms, detecting air traffic, and other purposes. Q: In police radar, a radar gun sends out short bursts of which waves? Choices: - photons - soundwaves - electrodes - microwaves A:
(Answer)
microwaves