Census is the complete count of a population, including place of residence.
Answer: Aqueducts
Explanation: They were first developed around 312 B.C., these engineering marvels used gravity to transport water along with the stone, lead and concrete pipelines and into city centers. Aqueducts liberated Roman cities from reliance on nearby water supplies and proved priceless in promoting public health and sanitation.
Answer:
The very idea of the British Raj—the British rule over India—seems inexplicable today. Consider the fact that Indian written history stretches back almost 4,000 years, to the civilizationcenters of the Indus Valley Cultureat Harappa and Mohenjo-Daro. Also, by 1850, India had a population of at least 200 million.
A method called statistics
Because Union and strikes were banned by the government WORKERS' WAGES DECREASES.
By abolishing Unions and the right of the workers to stage strike, the government gave enormous power to the industrialists and this led to decrease in the wages of the workers. This was majorly because, the employers knew that the workers have no other choice but to accept what they are offered.
