Final answer:
Construction workers, janitors, and waiters/waitresses are examples of low-paying jobs that require significant human effort and physical contact. These positions are part of the working class and are essential to the economy but often lack strong union representation, affecting their earning potential.
Step-by-step explanation:
Jobs that require a lot of human effort and physical contact and are low-paying include construction workers, janitors, and waiters/waitresses. These occupations are often hands-on, physically demanding, and may be associated with the working class, which is the highest subcategory of the lower class. Such jobs may involve landscaping, cooking, cleaning, or building. They can provide steady employment but are typically low-paying and might have lower percentages of unionized workers, leaving them with less bargaining power for wages and benefits. These occupations require significant amounts of physical labor, with tasks ranging from manual lifting to repetitive movements.
These manual labor jobs are crucial to various industries and hold an essential place in the economy, even as more jobs become automated or outsourced. Nevertheless, while some job markets such as fishing and forestry are in decline, others like personal care and service are on the rise in the United States.