The chemical substance found in the atmosphere exists as a / an______.

Most atmospheric constituents are gases. However there are many solid and liquid exceptions that limit visibility. They are called aerosols.

Thanks drwls but not one of my choices though these are my choices.

a) mixture
b) radical
c) element
d) compund
e) solid

The answer depends upon which chemical substance you are talking about.

Whenever you have choices, please post them right away with your question.

To determine the chemical substance found in the atmosphere, you can follow these steps:

1. Research: Start by gathering information about the atmosphere and its composition. The Earth's atmosphere is primarily composed of nitrogen, oxygen, and trace amounts of other gases, such as carbon dioxide, water vapor, and noble gases. These gases are found in different proportions at different altitudes.

2. Composition analysis: Analyze the composition of the atmosphere by measuring the concentration of different gases. This can be done using various scientific instruments such as gas analyzers or spectrometers. Scientists collect samples of air from different locations and altitudes to obtain a comprehensive analysis.

3. Laboratory analysis: In a laboratory, the collected air samples can be analyzed using techniques like gas chromatography or mass spectrometry. These methods help identify the individual components and their relative amounts in the atmosphere.

4. Reference sources: Consult trusted scientific sources like research papers, reference books, or reputable websites to find specific information about the chemical substances present in the atmosphere. Scientific organizations like NASA, NOAA, or academic institutions often provide detailed data on atmospheric composition.

Considering these steps, the chemical substance found in the atmosphere can include nitrogen (N2), oxygen (O2), carbon dioxide (CO2), water vapor (H2O), and other trace gases depending on the location and altitude.