union

Both pollutant and contaminant are similar aspects of environment pollution. They both cause harm to the environment by being introduced in undesirable amounts. Pollutants refer to an excess of substances already present in nature. Oxides of nitrogen from vehicle exhaust in cities is an example of..

We are familiar with plane figures bounded by straight line segments as sides. They are known as Polygons . Polygon is a word of Greek origin. It means figure with many angles implying many sides. Squares, rectangles and other four-sided geometric figures formed by the union of four line ..

Pollination - The pollen grains which produce the male gametes and the ovules which bear the female gametes are borne on different structures. It therefore becomes necessary that for sexual union to occur, the pollen grains must be transferred to the stigma. The transfer and deposition of..

Introduction - We are familiar with plane figures bounded by straight line segments as sides. They are known as Polygons . Polygon is a word of Greek origin. It means figure with many angles implying many sides. Squares, rectangles and other four-sided geometric figures formed by the union..

Strong electrolytes are almost completely dissociated / ionized into the constituent ions in aqueous solution. Even at higher concentrations, very small amount of any strong electrolyte is present in the unionized form. Weak electrolytes are however, partially ionized and a dynamic equil..

The union of the set of rational numbers and irrational numbers forms the set of real numbers. Q = {rational numbers} = {irrational numbers} Then = R = {real number..

In this type, the ovary has two or more carpels, syncarpous, and has two or more locules. The ovules are borne at or near the centre on the axis formed by the union and fusion of the septa (partitions) and usually in vertical rows. e.g., Apple, Hibiscus etc. ..

Union of two sets A and B is the set of all elements which are in A, or in B, or both in A and B. In Set builder form,..

The plant possess a rosette of large radical leaves. Petiole is winged and constricted at the point of union with lamina, tip is notched. The margin is slightly curved and bears 12 - 29 spiny teeth. On upper surface of lobe are present three highly sensitive spines called trigger hairs. L..

We are already familiar with set theory and mathematical logic from earlier classes. It has already been seen that there is a similarity between the laws stated in set theory and the mathematical logic. The operations 'union', 'intersection' and 'complement' on sets are comparable with th..