Photosynthesis is the process which the plants undergo to convert their food into simple sugar with the use of sunlight. During photosynthesis, the water that the roots of th plants absorbed from the ground and the carbon dioxide that they got from the surrounding environment are converted chemically to sugar and oxygen.
These products are both useful to every living thing that needs food and breathe air.
Plants are not only producers but they also serve as source for food of both animals and human beings. They are called producers in the food chain since they derive their food mainly from their own with the use of sunlight and water.
Plants also provide is with clean air due to its by-products in photosynthesis, which we call oxygen. Every animal and human being depends on plants for food and and oxygen.
Pollution is the addition of impure substance contaminating the environment. It causes undesirable change in the physical, chemical, and biological conditions of the environment which is brought about by human interferences in the natural processes of ecosystem functioning. This has detrimental effect in human life, flora and fauna, recreational or cultural assets, agricultural, industrial and commercial processes.
There are different kinds of pollution that may develop quickly or slowly depending on the activities of humans.
There is a limit to the organism’s span of life. And organism maintains itself for as long as it remains young and healthy, however, its is very own parts are subject to wear and tear. The ultimate fate of all organisms is aging and death. However, nature has endowed them with the ability to proliferate new individual of the same kind called reproduction. It is the process by which an organisms may produce offspring and perpetuate the species. In every case, the organisms begets alike organism; the mango tree reproduces a mango not a guava; the dog, a new puppy not a kitten.
Organisms produce offspring which resemble their parents. They are able to pass on characteristics from one offspring to another and from one generation to another. Their reproductive fidelity depends on set of chemical blueprints contained within each organism the hereditary or generic information, which species what form the new individual take and in part, how it will develop and grow.