Question

18 indeed, college students in the us spend less time on academic pursuits — attending class and studying — than all but one european country examined in a recent project.
19 in addition to failing to facilitate the development of general collegiate skills for many students, colleges often do not, according to our research, provide adequate institutional support towards apprenticeships, internships, mentoring opportunities and job placement services.
20 among graduates in aspiring adults adrift, those who used college resources or internships to find jobs were less likely working in unskilled occupations. but fewer than half of the graduates located jobs through these means.
21 many others relied on formal means (such as employment agencies or publicly available job advertisements) or their friends and families. these were more likely to lead graduates to unskilled jobs.
22 but college is not only about preparing students for the job market. notably, it is also about preparing them for participation in a democratic society.
fewer than 40% of graduates read newspapers regularly
23 the number of clubs and student organizations on any four - year campus is astounding, encouraging a high level of participation in a range of local and global issues.
24 however, two years after college completion, fewer than 40% of graduates read newspapers online or in print daily. a third reported reading newspapers very rarely (monthly or never). and almost 40% of reading newspapers very rarely (monthly or never).
paragraph 21

1. how do paragraphs 19, 20, and 21 build on each other?

Explanation:

Paragraph 19 points out colleges' lack in supporting students' practical - related opportunities. Paragraph 20 shows that using college resources for job - finding reduces the likelihood of unskilled jobs, but few students do so. Paragraph 21 then details alternative job - finding means that are more likely to lead to unskilled jobs. These paragraphs build on each other by first highlighting college deficiencies, then the impact of using college resources on job quality, and finally the less - effective alternative job - finding methods.

Answer:

Paragraph 19 starts by stating colleges' failure in providing adequate support for practical opportunities. Paragraph 20 follows up by showing the positive impact of using college resources for job - hunting among graduates and the low rate of such usage. Paragraph 21 further elaborates on other job - finding means that are more likely to result in unskilled jobs, thus continuing the discussion on the job - related issues due to colleges' lack of support and students' job - finding methods.