It depends on what you take to be the beginning and what the end. It lasted two years if you understand it as from the time it was revealed to the time Nixon resigned. It lasted 5 years if you take it from the time Nixon began doing it to the time he resigned.
Answer:
It looks like children working in a coal mine so i guess Gases, Mines could collapse, and possibly get sick from fumes or something.
Explanation: Carbohydrates are important for providing the energy needed to the body, whereby they digest, decompose and release glucose. Glucose is important because of the energy needed by the body in metabolic processes. In addition, carbohydrates provide energy storage, which can be used later, so we have energy reserves when needed. Carbohydrates contribute to muscle preservation because stored glucose is mainly found in muscle. The fact that carbohydrates in addition to carbon, hydrogen also contains oxygen, which is the main cleaner of the body and reduces the risk of many diseases.
Explanation:
my answer is the third one
Black paper which is gained from selling goods and things like that then white paper which is usually handed by the government