Leaves of plants are the factory units for making the food in the form of sugar from carbon dioxide, water and light by a process called photosynthesis. The process is accomplished with the help of chlorophyll which belongs to a class of organic compounds called porphyrins. We also have noticed that plants leaves change color especially when the amount of light available changes with the change of weather. Chlorophyll exists in two forms namely Chlorophyll A and Chlorophyll B. It’s production in the plant is dependent upon the amount of sunlight available. It also decays at a continuous rate irrespective… Read More »Chemistry of leaf colors
November 8, 2020
We traveled by Shatabadi Express from Delhi to Dehradun. First it was in winters and second only in June of this year. As soon as the train crosses the industries outside Delhi, the dead river called Yamuna, the green fields begin to span both sides of the train line. Yamuna river, one of the three rivers-Ganges, Yamuna & Saraswati- forming the holiest trinity of Indian rivers is a cesspool of industrial waste, floating dead animals. Its color is almost black and it seems like a corpse. Its chemical oxygen demand (COD), a parameter to indicate the industrial waste pollution must… Read More »Poplar cultivation
At the starting point of human evolution timeline, the progress was very slow and full of dangers. Learning was at the cost of many human lives. In the beginning, man was a hunter and did not have a stable life. He was always on the move because animals which he hunted were also capable of running. Life of hunting was not easy.They were on lookout for more stable life. To be able to stay put at one place. For this, humans had to enable themselves replace their diet with grains and cereals which could be grown near their abodes. As… Read More »Is Collective Wisdom always Correct?