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The table below lists a number of substances that are common on planet Earth. What are the five most abundant substances present in the Earth's atmosphere?
Argon
Silicon Dioxide
Oxygen
Ozone
Carbon Monoxide
Nitrogen
Water
Carbon Dioxide
Sulfur

1 answer

The five most abundant substances present in the Earth's atmosphere are:

  1. Nitrogen
  2. Oxygen
  3. Argon
  4. Carbon Dioxide
  5. Water (in variable amounts, as it is present as water vapor)

Ozone is present in the atmosphere but in much lower concentrations compared to the substances listed above. Silicon Dioxide is primarily found in the Earth's crust rather than the atmosphere. Carbon Monoxide and Sulfur are also present in trace amounts but are not among the most abundant substances.