I believe the answer is: Similarity
According to the gestalt principles, individuals that possess similar objects in term of shapes or colour would be automatically perceived as being in the same group. In public setting such as soccer match, this help the audience distinguish one team with another.
Sociologist William Julius Wilson uses this term Jobless ghettos to describe high-poverty minority neighborhoods where the majority of adults do not work.
The negative urban population in the America has grown from 33 percent of all nationwide poverty in 1959 to almost 50 percent in 1991, maximum hastily in African American neighborhoods.
Social scientists like Wilson generally outline ghetto neighborhoods as those inside ghetto poverty census tracts, a proper time period for regions "wherein at least forty percent of the residents are terrible." He unearths it alarming that between 1970 and 1990, 1,203 tracts fell to ghetto poverty stage within the country's a hundred largest cities.
Wilson refutes the argument made by way of sociologists Douglas Massey and Nancy Denton that despair-generation ghetto poverty in the 1930s was simply as focused because it changed into in the Seventies due to the fact African American communities suffered identical racial segregation no matter the 12 months. but segregation does no longer provide an explanation for why, from 1970 to 1990, concentrated poverty has tripled in sure African American neighborhoods, nor does it remember "the rapid boom of joblessness, which accelerated through these two decades."
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D. the balls were dropped from different heights
The correct answer to this open question to this open question is the following.
Although there are no options for this question we can say the following.
Indian mathematics was able to make great advances in the 3rd and 2nd century BCE, in part because of their development of the decimal system and the invention of "zero."
Indians were smart people and great mathematicians. Great Indian mathematicians such as Brahmagupta or Aryabhata, also developed concepts on algebra negative numbers, and trigonometry that are applicable in modern-day mathematics. From India, these concepts spread to other far regions such as the Middle East or China, where other mathematicians and scholars improved these concepts.