What is the main source of air pollution in the world today

The main source of air pollution is the burning of fossil fuels by industries and vehicles. Burning fuel gives off gasses that are poisonous that can damage people’s health. Acidic chemicals in air pollution also combine with precipitation to form acid rain. Acid rain eats away at the surfaces of buildings, kills fish, and can destroy entire forests.

- three-quarters or two-thirds..

- "the constitution provides that an amendment may be proposed either by the congress with a two-thirds majority vote in both the house of representatives and the senate or by a constitutional convention called for by two-thirds of the state legislatures."

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