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.
Explanation:
The per capita income can not reflect the true state of economic development because if the income of a particular group have increased or have become rich and the income of other groups remain the same, it will reflect an increase in the per capita income.
This question is missing the options. I've found the complete question online. It is the following?
When the influence of the situation is _______, the consequent behavior is more likely to be a result of _______.
Select one:
a. weak; individual personalities
b. weak; external circumstances
c. strong; internal forces
d. strong; dispositions
Answer:
The correct option is letter A. When the influence of the situation is weak, the consequent behavior is more likely to be a result of individual personalities.
Explanation:
Since behavior is a product of a situation combined with the person, it is fair to think that the result may be accounted for differently according to how strong each element is. Thus, if a situation and the "sub-elements" it includes - such as the presence of others, cultural and social influences, and so on - are weak, it is only logic to assume that the element "person" will be predominant. The result behavior is, therefore, more likely to be a consequence of that individual's personality.
They were the one's, who basically bought slaves in the triangle trade, and in exchange gave multiple things that couldn't be grown in England, such as coffee.
The correct answer is participant observation
Participant observation is an excellent methodological resource for field research, makes it possible to obtain a holistic and natural perspective.
