Question

How are light,water and carbon dioxide regulated to raise the plant in greenhouse ?

Answer 1

 Over 97% of all greenhouse gases are natural and there is nothing we can do about them. For example, India's population of one billion people produces more carbon dioxide just by breathing than is produced by all the coal-burning power plants in the United States. Moreover, termites are said to produce more carbon dioxide each year than all other living organisms combined.

Environmentalists would have you believe that the greenhouse effect originated in the 20th century. The greenhouse effect is essential to the survival of life on Earth. If there were no greenhouse gases, the temperature of the air would be about 32°F (18°C) colder than it is. In other words, the world would be frozen most of the time.*

The two predominant greenhouse gases are water vapor and carbon dioxide. You produce both of these gases when you exhale. Between 94½ and 96½ percent of atmospheric carbon dioxide comes from natural sources.* Between 94 and 98 percent of the warming effect is due to ordinary water vapor, which comes from the oceans and lakes.