Answer:
480 million years ago
The Appalachians first formed roughly 480 million years ago during the Ordovician Period, and once reached elevations similar to those of the Alps and the Rocky Mountains before they were eroded.
Explanation:
so b is your answer
D. Proposition 209
Since the passing of Proposition 209 - a ballot initiative that amended the California Constitution to prohibit discrimination on the basis of race, sex or ethnicity - the number of Black students admitted and enrolled to UC Berkeley has dropped despite an increase in applications , according to a UC Office of the President fact sheet.
According to the fact sheet, Black students made up 6.7% percent of all enrolled California resident freshmen in 1995 , but this figure dropped to 3.7% in 1998, just two years after Prop 209 had taken effect. In contrast, 29.5 % of California resident freshmen consisted of white students in 1995, and this figure dropped to 28.2% percent in 1998.
Answer: Negative punishment
Explanation: Negative punishment is use to reduce a behavior by removal of a favorable stimuli. It is a kind of punishment which focuses in reducing the rate of undesired behavior from an individual. Example is being grounded,losing access to a toy.
Plasma is a state of matter.
