Countries Surrounding Caspian Sea and Some Facts

There are many countries surrounding Caspian Sea. Control over water large water bodies, lakes, seas and oceans is one of the important means for maintaining geopolitical dominance, Therefore, geography students must know the countries surrounding these major water bodies. The Caspian Sea is surrounded by five countries of central and west Asia. Russia Azerbaijan Iran … Read more

Evidences of Interior of the Earth

Since we can not directly observe the interior of the earth, we have to depend upon the evidences of interior of the earth. Scientists have always wondered about the structure, composition, temperature and the state of matter in the interior of the earth. The deepest borewell in the history of human beings is Kola Superdeep … Read more

Types of Air masses

Definition of Air Mass An air mass is a huge body of air having homogeneous temperature and moisture (humidity) condition over a large area. The properties of an air mass convey the climatic condition of its source region. There are different types of air masses based on source region. Source regions of air masses are … Read more

Types of Rainfall

There is primarily three types of rainfall based on the means of condensation of moisture in the air. The rising hot air cools at dry adiabatic and wet adiabatic lapse rate which leads to condensation of water vapor present in rising air at high altitude. Subsequently, the condensed water droplets coalesce to form larger water … Read more

Three Types of Lapse Rates of Air Temperature

We need to understand different types of lapse rates to satisfy a curious person who might ask for the reason of rainfall. “Why does it rain?” To answer this simple question, we must understand that the temperature of air declines as it rises from the earth surface towards higher altitude. The curious mind will again ask, … Read more

Definition, Nature and Scope of Geomorphology

What is Geomorphology? Geomorphology is a combination of three words i.e. geo (earth or land) + morphous (shape or form) + logus (study). Combined, this means that geomorphology is the study of different kinds of landforms on the surface of the earth. It also explains the origin of these landforms and rate of change in … Read more

What is Geography and why do we study it?

What will we learn in this article? In this article, the reader will start from learning a partial understanding of geography to a correct understanding of geography as a subject and discipline. People often ask , What is Geography? Why are people wrong about geography? To a layman, it is nothing more than memorizing the … Read more

Adiabatic Rate of Temperature Change

What is Adiabatic change of temperature? The change in temperature of any parcel of air due to change in pressure is called adiabatic change in temperature. This change in temperature happens without exchange of heat of a given parcel of rising air with the surrounding air. Let’s disaggregate this concept First, Earth surface gets heated … Read more