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.
After its defeat in the Spanish-American War of 1898, Spain ceded its longstanding colony of the Philippines to the United States in the Treaty of Paris. The decision by U.S. policymakers to annex the Philippines was not without domestic controversy.
Answer:
Option A is the correct answer.
Explanation:
The physiological tolerance of a specie is there to show the lower and upper limit of extremity of environmental conditions within which a specie is capable of surviving irrespective of the possibility of performing its entire activities such as reproduction. However species can be found at those environment in which it can perform optimally.
In the waning years of the Empire, Egypt fell to the Sasanian Persian army in the Sasanian conquest of Egypt (618–628). It was then recaptured by the Byzantine emperor Heraclius (629–639), and was finally captured by Muslim Rashidun army in 639–641, ending Byzantine rule.
Answer:
b. The principle of uniformitarianism
Explanation:
The present is the key to the past" is a condensed formulation of the principle of uniformitarianism.
