Question

What is !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!​

Answer 1

Answer:

There are four main types of air pollution sources: mobile sources – such as cars, buses, planes, trucks, and trains. stationary sources – such as power plants, oil refineries, industrial facilities, and factories. area sources – such as agricultural areas, cities, and wood burning fireplaces.

Answer 2

$\huge\mathfrak{✩Solution}$

• The imaginary unit or unit imaginary number is a solution to the quadratic equation x² + 1 = 0.

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