Jen and Ori are conducting an experiment to observe how sand and water absorb energy. They obtain two identical 1000-milliliter (mL) beakers, add 500 mL of distilled water to the first beaker, and 500 cubic centimeters (cm 3 ) of sand to the second beaker. They place both beakers on a hot plate that is set to medium heat. Thermometers are placed in each beaker and held with clamps. Both beakers are heated for seven minutes and then removed from the hotplate and cooled for an additional fifteen minutes. Jen and Ori record the temperature of each beaker at one-minute intervals. How could Jen and Ori have increased the reliability of their experiment?

When a person is assigned a status at birth and must remain in it throughout his or her life, it is a caste system.

Explanation:

A caste system is applied in some societies and consists of the assignment of an individual to a social stratum by birthright, being forced to remain in that status and even relate to people of the same social category and allow endogamy.

It is a system that exists in ancient societies, an example being the Hindu caste system or South African apartheid. Other cultures that made use of the caste system were the Arab and Hebrew.

Unlike the caste system, the class system consists of inclusion in a specific social class, without the intervention of the birthright.

Learn more:

Caste system link