Outside a broad downright rots the laughing luxury.

Outside a broad downright rots the laughing luxury.

Effects of air Pollution on Human health

Air pollution badly affects human health. Acute respiratory infections, chronic bronchitis, pulmonary emphysema, bronchial asthma and even lung cancer are caused by small amounts of air pollutants. Presence of lead in the air badly affects the brain of children and their nervous system. Nitrogen oxides damage the lungs and heart and cause irritation in the eyes. Ozone causes sore eyes, coughing and chest soreness and chest soreness. Cadmium is a respiratory poison and causes blood pressure and heart diseases. Pollution very adversely affects plants. Sulphur affects several plants such as graps, cotton, apples, etc. Higher concentration of sulphur dioxide is responsible for chronic injury in plants. Fluoride, smog, nitrogenoxide affects plants and vegetation. Sulphur pollution affects materials, such as sliver and palladium. At low concentration, sulphur damages paint pigments. Ozone badly affects textiles, decolourises dyes and causes rubber cracking.

Law of Thermodynamics

It states that when one form of energy is converted into another, there is no net loss or gain i.e the total amount of energy resulting from a conversion is equal to amount we start off with. However, all energy is not in the same form. Living organism are adapted to harness and utilize energy so as to maintain their organized state. Maintaining life of an organism means putting energy into it. This is a result of second  law of  thermodynamics. In another word, when one form of energy is converted into another, a proportion of it is turned into heat.

Law of thermodynamics

Bioamplification

Bioamplification means building up of poison in a food chain. Question arises that from where this poison come? Farmers use pesticides and insecticides to destroy bacteria and kill insects. These insect and crops are eaten by birds. This poison enters in the food chain.When birds eat dead insects they get large quantities of poison. It is enough to kill them. This accumulation of poison  in a bird can also cause it to lay eggs with weak shells which break when birds sits o them.

Colonization

It is an example of intraspecific interaction of biotic factors. In the evolution of animal is found grouping of free-living protozoans so as to form colonies. Later development of such colonies occur into multiceullar metazoans which behave and respond as unit organisms. The colonial form have survival value to persist. Colonization led to division of labour between somatic and reproductive.