“Legalism in the Qin dynasty.
Legalism became the official philosophy of the Qin Dynasty (221 - 206 BCE) when the first emperor of China, Shi Huangdi (r. 221-210 BCE), rose to power and banned all other philosophies as a corrupting influence. ... The excesses of the Qin Dynasty's legalism made the regime very unpopular with the people of the time.
The Legalists advocated government by a system of laws that rigidly prescribed punishments and rewards for specific behaviours. They stressed the direction of all human activity toward the goal of increasing the power of the ruler and the state.
Historians are most likely to study written records because they study history.
Geologists study solid and liquid matter that make up the earth as well as history that has shaped it.
Archaeologists study the history based on artifacts, monuments, etc.
D. All of the above.
The type of chemical, its concentration, and weather conditions where said chemical is introduced are factors that determine how harmful an introduced chemical will be in the environment.
Examples of chemicals that are harmful to our environment are:
1) organochlorines - compounds like polychlorinated biphenyl (PCBs) originally developed for use in electrical equipments as cooling agents. They are carcinogenic and capable of damaging the liver, nervous system, and the reproductive system in adults.
2) dioxins - by-product of the manufacturing, moulding, or burning off of organic chemicals and plastics that contain chlorine. An environmental and health hazard.
3) cadmium - used in batteries, plastics, pigments and metal coatings. Produced by mining and other industrial activities. Accumulation will lead to kidney and bone diseases.
Answer:
papermaking, printing, the compass, and gunpowder
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