Question 19 which variable gas plays a major role in the formation of a) nitrogen b) oxygen c) carbon dioxide d) water vapor

c) Carbon Dioxide

Explanation:

The majority of the variable gases are carbon dioxide, Water, Oxygen and Nitrogen all these one of the most for the existence of life on earth but out of these most variable gas found in the atmosphere is carbon dioxide. Found in all sorts of places and is a compound on the greenhouse gas it has existed on earth for thousands of years long. It is a major contributor to the balancing of the energy and heat budget of the planet. Apart from this carbon is needed as a driver of energy in the atmosphere as it absorbs heat and radiated it in the form of light and needed by the plants for carrying out their processes.

Mexico has a host of environmental problems, including significant chemicalpollution  from factory discharges and waste dumping, but the main threat to itsbiodiversity  probably stems from  deforestation  and other natural habitat losses. forest habitat is lost for a number of reasons