Answer:
The volcano injected some 15 billion tons of sulfur dioxide into the stratosphere. There it reacted with water to form a layer of aerosol particles, which are primarily sulfuric acid droplets. Winds have take those aerosol particles all around the world. The stratosphere lacks rain clouds as a mechanism to wash out pollutants fast. This heavy influx of aerosol pollutants will remain in the stratosphere for years until natural chemical reactions and atmospheric circulation can filter them out.
Explanation:
(x, y) values are: (-4, -12), (-3, -5), (-2, 0), (-1, 3), (0, 4), (1, 3)
Then we can solve for average rates of change as (y2 - y1)/(x2 - x1).
For [-4, -2]: (0 - (-12))/(-2 - (-4)) = 6
For [-2, 1]: (3 - 0)/(1 - (-2)) = 1
For [-3, 1]: (3 - (-5))/(1 - (-3)) = 2
For [-4, 0]: (4 - (-12))/(0 - (-4)) = 4
Answer:
the lowest caste, also called the "untouchables," who had the worst jobs in the society
Explanation:
