Answer: d. Young people today define adulthood in terms of abstract traits like self-reliance and happiness.
Explanation:
Furstenberg's work has focused on social change, the transition to adulthood, divorce, and intergenerational relationships. He explains that in the present, young people have a definition of adulthood that is more extensive than in the past. Instead of the achievement of distinct goals, such as the homeownership of a house, young people today define adulthood in terms of abstract traits such as self-reliance and happiness.
The period of human evolution has coincided with environmental change, including cooling, drying, and wider climate fluctuations over time. How did environmental change shape the evolution of new adaptations, the origin and extinction of early hominin species, and the emergence of our species, Homo sapiens? (‘Hominin’ refers to any bipedal species closely related to humans – that is, on the human divide of the evolutionary tree since human and chimpanzee ancestors branched off from a common ancestor sometime between 6 and 8 million years ago.)
How do we know Earth’s climate has changed? How quickly and how much has climate changed? One important line of evidence is the record of oxygen isotopes through time. This record of δ18O, or oxygen stable isotopes, comes from measuring oxygen in the microscopic skeletons of foraminifera (forams, for short) that lived on the sea floor. This measure can be used as an indicator of changing temperature and glacial ice over time. There are two main trends: an overall decrease in temperature and a larger degree of climate fluctuation over time. The amount of variability in environmental conditions was greater in the later stages of human evolution than in the earlier stages.
The numbers of immigrants who entered the United States during the Industrial Age was in the hundreds of thousands.
