Answer:
<em>Class </em>mobility.
Explanation:
<u>Class mobility </u>is a type of social mobility when representatives of a lower-class move to the higher class. It can occur as a result of changes in both classes.
In the given example it occurs both because of the fact that families in the higher class have fewer children and because some offsprings from a lower-class families are hardworking. The tendency that higher-class couples tend to have fewer children leads to the more available spaces in the entry-level labor force, which in turn creates more real opportunities for children from lower-class families. This in is itself becomes an extra motivator to work harder.
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Out of all the options given, the correct answer is C) threat of blackouts.
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In general, animals are perceived by scientists as being relatively intelligent possess by scientist.
Animals are then broken down into two sorts: vertebrates and invertebrates. Animals with a spine are vertebrates. Vertebrates belong to the phylum referred to as Phylum Chordata. Vertebrates are similarly broken down into five instructions: amphibians, birds, fish, mammals, and reptiles.
We can define animal intelligence as the combination of talents and abilities that allow animals to stay in and adapt to their unique environments. What does this actually imply? Animals possess the potential to conform to their surroundings via gaining knowledge of to exchange their habits and behaviors.
Learn more about a general animal here:brainly.com/question/25897306
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The correct answer is B.
A mineral is defined as a naturally occurring substance that has a definite chemical composition and crystal structure.
In order for a substance to be called a mineral, it must have all the four characters described in the definition.
- a mineral is always a solid and has a definite shape and volume.
- most minerals are made of two or more elements chemically combined to form a compound. It may also be made of a single element e.g. gold, copper or sulphur.
- all minerals have a characteristic crystal structure.
- minerals are grouped according to their chemical composition or makeup