special needs catalog

The offsprings are genetically identical and therefore advantageous traits can be preserved. Only one parent is required which eliminates the need for special mechanisms such as pollination, et..

Most materials expand when their temperatures increase. The railway tracks, need special joints and supports to allow for expansion. A completely filled and tightly capped bottle of water cracks when it is heated, but you can loosen the lid of a metal jar by running hot water ov..

Crops of a particular species are more prone to a particular type of pest (weed, insects, diseases) infestation. When different types of crops are grown together chances of pest infestations are reduced or diluted. Due to increasing needs and reducing available land resources, there is a..

These are land plants which grow in moist habitats and need well aerated soils. They prefer soil and air with moderate humidity. They avoid soils with standing water and soils containing great abundance of salts. They have some special features. Root system is well developed. St..

The preparation of ozone needs a source of pure, cold and dry oxygen. The formation of ozone from oxygen is a reversible endothermic reaction..

Ecological Adaptations - Mesophytes - These are land plants which grow in moist habitats and need well aerated soils. They prefer soil and air with moderate humidity. They avoid soils with standing water and soils containing great abundance of salts. They have some special featu..

. Deforestation is a formidable threat to our economy, quality of life and environment. Increasing demand for agriculture lands, industrial development, construction of roads and mining activities are degrading our forests. The steps specially recommended for forest conservation are extra..

A comprehensive World Conservation Strategy for the judicious use of living resources has been formulated by the scientists of 100 countries. Some of the steps suggested to protect the wild life are: a) Special attention should be given to conserve the species, which fall in the category..

The offsprings are genetically identical and therefore advantageous traits can be preserved. Only one parent is required which eliminates the need for special mechanisms such as pollination, etc. It is faster. For example, bacteria can multiply every 20 minutes. This hel..

While modern day farmers specialize in one agricultural sector, either dairy or growing potatoes, their predecessors kept a wide array of farm animals and planted many different kinds of field crops. Their farms were remarkably self sufficient, producing eggs, meat, milk, vegetables and g..