Answer:
Every major advance in agriculture has allowed global population to increase. Early farmers could settle down to a steady food supply. Irrigation, the ability to clear large swaths of land for farming efficiently, and the development of farm machines powered by fossil fuels allowed people to grow more food and transport it to where it was needed.
I don't know but the tower of the empire
Herbert Hoover took office in 1929 with a display of optimism and the promise of a "New Day." In his inaugural, he boasted that "in no nation are the fruits of accomplishment more secure" and claimed that "anyone not only can be rich, but ought to be rich." He warned his audience of the dangers of a large and activist federal government but also decried the self-serving greed of large corporations. Hoover reiterated his belief in the centrality of the individual in the American experience, the theme he had developed at some length in his 1922 book American Individualism.
B. authors is the correct answer for this one!
A main consideration in the advancement of the twentieth century patriot development all through Africa was a shared objective to end European run in Africa. This type of patriotism was a key consider the Indian Independence Movements that at last disjoined ties with Britain and conveyed autonomy to India.