The Dust Bowl, also known as the Dirty Thirties, was a period of severe dust storms that greatly damaged the ecology and agriculture of the US and Canadian prairies during the 1930s; severe drought and a failure to apply dryland farming methods to prevent wind erosion (the Aeolian processes) caused the phenomenon.
The answer is true. There
was several times where the United States restricted the entry of certain
groups of people into their country. These
was regulate who would enter their country.
Today that is no longer being practiced as restrictions are now being
removed.
The early part of the Vedic period, was an age of economic self-sufficiency and consequently there was little scope for an exchange of commodities. All the rural centres were self-supporting. Every house-holder produced the necessaries of life—his farm producing his food-grains and other necessaries, the industry of the women of his household supplied him with his clothing, while the craftsmen attached to the village did the rest. Consequently, there was no inter-dependence between two neighbouring local areas. The surplus product was kept for future consumption. This state of full economic independence did not however last long. Society became complex.
A large section of the community gave up the simple agricultural life; the primitive arts and crafts drew away a large number; owing to these and various other causes, there arose a scope for interchange of commodities between different local areas.
Answer:
b and d
Explanation:
a. The Persians fought the Greeks, but lost.
b. Darius I and many other Persian leaders treated their subjects well and were very powerful
c. Persia was fine with letting its subject choose their religion
d. true.
