Answer the following question given this paragraph: Q: What forms when water in the atmosphere condenses on dust particles suspended in the air? Choices: - hail - snow - wind - clouds A:
clouds
(Question)
Answer the following question given this paragraph: Soils with lots of very small spaces are water-holding soils. When clay is present in a soil, the soil holds together more tightly. Clay-rich soil can hold more water. Q: The presence of what makes soil hold together more tightly and enables it to hold more water? Choices: - sand - salt - glass - clay A:
(Answer)
clay
Ques: Answer the following question given this paragraph: Sodium chloride crystals are cubic in shape. Other ionic compounds may have crystals with different shapes. Q: What type of shape does sodium chloride have? Choices: - round - trianguler - oblong - cubic A:
Ans: cubic
(Q).
Answer the following question given this paragraph: Different radioisotopes may vary greatly in their rate of decay. The more unstable their nuclei are, the faster they decay. Q: Radioisotopes may vary greatly in their rate of decay, decaying faster if their nuclei are more what? Choices: - mature - immature - stable - unstable A:
(A).
unstable
Ques:Answer the following question given this paragraph: The rate of radioactive decay varies from one radioisotope to another. The rate is measured by the half-life. This is the length of time it takes for half of a given amount of a radioisotope to decay. Q: How is the radioactive decay measured? Choices: - carbon dating - quarter-life - alpha emission - half-life A:

Ans:half-life
Question: Answer the following question given this paragraph: Conditioned Behavior Conditioned behaviors are types of associative learning, where a stimulus becomes associated with a consequence. During operant conditioning, the behavioral response is modified by its consequences, with regards to its form, strength, or frequency. Classical Conditioning In classical conditioning, a response called the conditioned response is associated with a stimulus that it had previously not been associated with, the conditioned stimulus. The response to the original, unconditioned stimulus is called the unconditioned response. The most cited example of classical conditioning is Ivan Pavlov's experiments with dogs (Figure 45.40). In Pavlov's experiments, the unconditioned response was the salivation of dogs in response to the unconditioned stimulus of seeing or smelling their food. The conditioning stimulus that researchers associated with the unconditioned response was the ringing of a bell. During conditioning, every time the animal was given food, the bell was rung. This was repeated during several trials. After some time, the dog learned to associate the ringing of the bell with food and to respond by salivating. After the conditioning period was finished, the dog would respond by salivating when the bell was rung, even when the unconditioned stimulus, the food, was absent. Thus, the ringing of the bell became the conditioned stimulus and the salivation became the conditioned response. Although it is thought by some scientists that the unconditioned and conditioned responses are identical, even Pavlov discovered that the saliva in the conditioned dogs had characteristic differences when compared to the unconditioned dog. Q: In classical conditioning, a response called the conditioned response is associated with what? Choices: - unconditioned stimulus - external inhibition - blocking effect - conditioned stimulus A:
Answer:
conditioned stimulus