Answer:
C. Varieties of an element that differ only in the number of neutrons are called isotopes.
Explanation:
The Earth is approximately 
old. The solar system formed from giant gas clouds which was a part of the solar nebula.
The surface of soil which demarcates two soils of different geological ages is called a unconformity.
Palesol is the soil that lies between sediments or volcanic deposits. If the paleosol is older they have lithified rock.
Hence, option C is true.
Answer:
True in most cases
Explanation:
This fact established can also be compared to a successful father or head male, if a father is successful, then there is tendency that the children will have that influence from there father to become successful ,so everything boils down to the father compared to the mother. Regardless of the gender of the children .So can be said about the criminality of the fathers can be of an influence to the children but note there is a possibility it might not happen( the children Also becoming a criminal), but in most true cases it happens but it all depends on the father and the mother generally.
A researcher that finds considering a drug as an interruption or disorder of physiological functions as most useful for understanding drug addiction likely would prefer the disease model of drug addiction.
Addiction is a chronic dysfunction of brain systems involved in reward, motivation, and memory. It's about how your body craves substances and actions. When you become addicted, your brain's receptors are overwhelmed. The brain responds by either reducing dopamine production or eliminating dopamine receptors.
These changes affect a person's behavior, causing them to lose control over substance use and behavior. Addiction is not technically considered a mental illness, but it is a medical disorder that often coexists with mental illness.
Learn more about addiction here
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Answer:
Answer is B, higher order conditioning.
Explanation:
Higher order conditioning is a situation or occurrence where a stimulus without effect,i.e a neutral stimulus, is connected or used together with a conditioned stimulus, in order to create the same output or result as the conditioned stimulus.
In the case of Marlene, the neutral stimulus is the closet door that squeak, initially, Marlene was not afraid of the squeaking of the closet door, but started getting afraid when she knew that the paddle was there. This is because she knew that the paddle was used for spanking her, which she feared a lot.
