From Colonialism to the First World War (1880s–1914) During the late 19th century, European powers intensified their competition for territorial…

The Concept of Environment Environment Explain the meaning of environment The term “environment” refers to the totality of the natural…

Concept of Settlement Introduction In this topic you will learn about the concept of settlement, types and characteristics of settlement…

Concept of Population The word population comes from the Latin word populus, meaning people. The term population is a general term that…

World Climatic Types and their Characteristics Major Climatic Types of the World and their Characteristics Climate is the average of…

Concept of Research The word research is derived from the French word “recherche” means “to search”. Research means a search for…

Aliphatic Hydrocarbons Nomenclature: METHODS OF PREPARATION OF ALKANES Hydrogenation of Alkenes and Alkynes Alkenes and alkynes react with hydrogen in…

Selected Compounds Of Metals (i.e COMPOUNDS OF Na, Mg, Ca, Al, Fe, Zn, Cu AND Pb) METAL OXIDES Definition; An…

Periodic Table Classification Is the chemistry of all the elements and their compounds with the exception of most carbon compounds…

Chemical Bonding And Molecular Structure  Definition:-chemical bond is the chemical force /force of attraction which keeps the atoms in any…