Answer:
Explanation:
Mercury’s atmosphere containing oxygen (42%), sodium (29%), hydrogen (22%), helium
(6%), potassium (0.5%) and water vapor.
2. Venus
The atmosphere of Venus is one of the most chemically complex and dynamically active
planetary atmosphere in the solar system. The Venusian atmosphere consist of carbon
dioxide (95.5%), nitrogen (3.5%), sulfur dioxide (0.015%), argon (0.007%), carbon monoxide
(0.002%), helium (0.001%), neon (0.001%).
3. The Earth
The atmosphere of Earth is mainly composed of nitrogen (78.08%) and oxygen (20.95%).
The remaining part of the atmosphere divided into the permanent and the variable
constituents. The permanent constituents consist of the five noble gases, argon, neon,
helium, krypton and xenon also other materials such as carbon dioxide, hydrogen, methane,
nitrous oxide and radon. The variable constituents of the atmosphere are water, carbon
monoxide and ozone.
