Geography

Main causes of the earthquake are plate tectonics, volcaniceruption or anthropogenic activities like explosions, reservoir induced seismicity etc. There is arelease of huge amount of energy in the form of sound and seismic waves causing shaking of earth’s surface. The regions which are on the  boundaries of the tectonic plates are more prone to earthquake.  … Read more

Variations of temperature, pressure and density are much larger in vertical directions than in horizontal. This strong vertical variations result in the atmosphere being stratified in layers that have small horizontal variability compare to the variations in the vertical. The atmosphere can be divided into five layers according to the diversity of temperature and density. … Read more

Tropical cyclones are violent storms that originate over oceans in tropical areas and move over to the coastal areas bringing about large scale destruction caused by violent winds, very heavy rainfall and storm surges. This is one of the most devastating natural calamities. They are known as Cyclones in the Indian Ocean, Hurricanes in the … Read more

In Fissure volcanic eruptions, the Lava comes out to the surface through the cracks of the rock strata and hence the fissure eruptions are not much explosive. The fissure eruptions are smooth and the Lava spreads to a larger area, so they form landscapes such as plateaus.  The major component of volcano are basalt. Basalt is … Read more

Environmental ethics is a branch of ethics that studies the relation of human beings and the environment and how ethics play a role in this. Environmental ethics believe that humans are a part of society as well as other living creatures, which includes plants and animals. These items are a very important part of the … Read more

The term irrigation efficiency expresses the performance of a complete irrigation system or components of the system. Irrigation efficiency is defined as the ratio between the amount of water used to meet the consumptive use requirement of crop plus that necessary to maintain a favourable salt balance in the crop root zone to the total … Read more

The factors are as follows:   Latitude: The insolation largely depends on the latitude. The intensity of insolation decreases from equator to poles. In addition to this the day length and seasons also depends upon the latitude. Hence lower latitude records high temperature as compared to higher latitudes.   Altitude: As we know that temperature … Read more

Grasslands are areas dominated by grasses. They occupy about 20% of theland on the earth surface. Grasslands occur in both in tropical and temperate regions whererainfall is not enough to support the growth of trees. Grasslands are known by variousnames in different parts of the world.Grasslands are found in areas having well defined hot and … Read more

  The Indian plate includes Peninsular India and the Australian continental portions.  The subduction zone along the Himalayas forms the northern plate boundary in the form of continent— continent convergence. In the east, it extends through Rakinyoma Mountains of Myanmar towards the island arc along the Java Trench. The eastern margin is a spreading site … Read more

. Natural vegetation refers to a plant community that has been left undisturbed over a long time, so as to allow its individual species to adjust themselves to climate and soil conditions as fully as possible. Tropical evergreen forests  are found in the western slope of the Western Ghats, hills of the northeastern region and … Read more