Quiz 1. Air pollution

What is air?

• A heterogeneous mixture of gases

• A compound

• A homogeneous mixture of gases

• An element

What is the chemical composition of pure air?

• N2, O2; CO2, CH4, CO; water vapor, inert gases

• N2 and O2

• O, CO2, SO2, H2O, Ar,

• NO2, CH4, H2O, inert gases

In which layer of the atmosphere can you find air?

• Mesosphere

• Stratosphere

• Troposphere

• Ionosphere

What is air pollution?

What is a pollutant?

What is a stationary source of air pollution?

• Volcanoes

• Cars

• Livestock

• Factories

Explain what are the natural sources of air pollution.

Which is the chemical of ozone?

• CO2

• O2

• CH4

• O3

Draw the molecule and chemical formula from methane.

Air pollutant that is emitted directly from vehicles and combustion engines, it is a gas that contributes who the greenhouse effect

• Carbon monoxide

• Lead

• Ozone

• Sulfur dioxide