Core, mantle, and crust are divisions based on composition. The crust makes up less than 1 percent of Earth by mass, consisting of oceanic crust and continental crust is often more felsic rock. The mantle is hot and represents about Read More …
Category: Geography
DMPQ-What is shale gas? Explain its composition and outline potential reserves in India?
Shale gas refers to natural gas that is trapped within shale formations. Shales are fine-grained sedimentary rocks that can be rich sources of petroleum and natural gas. Over the past decade, the combination of horizontal drilling and hydraulic fracturing has allowed access to large volumes of Read More …
DMPQ-Significance of Caspian sea treaty.
On 12 August 2018, after 20 years of talks, the leaders of the five littoral states to the Caspian Sea – Azerbaijan, Iran, Kazakhstan, Russia and Turkmenistan – finally signed a treaty defining its legal status. The ‘Convention on the Read More …
DMPQ- What is wind energy and how it is tapped? Write cons of Wind energy.
Wind is caused by the uneven heating of the atmosphere by the sun, variations in the earth’s surface, and rotation of the earth. Mountains, bodies of water, and vegetation all influence wind flow patterns. Wind turbines convert the energy in wind to Read More …
DMPQ- Write short note on Corolis effect?
It is a deflecting force experienced due to rotation of earth. Because of Coriolis the air appears to turn towards its right in the northern hemisphere and towards its left in the southern hemisphere. The coriolis always acts in the Read More …
DMPQ-Subtropical Jet streams. (GEOGRAPHY)
The sub-tropical jet stream is produced by the earth’s rotation (Coriolis force) and temperature contrast between tropical and sub – tropical regions.At the equator, the rotation produces greatest velocity in the atmosphere. As a result, the rising air which spreads out northwards and Read More …
DMPQ- Explain the concept of sea floor spreading
Concept of sea floor spreading was given by Henry Hess which was crucial to establish the formation of different geological surface on the earth. The major findings were: The crust below the ocean floor was found only 7-8 km thick. Read More …
DMPQ- What is cyclone? How the naming of tropical cyclone is done in Indian ocean?
A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain. Depending on its location and strength, a tropical cyclone is referred to by different names, including hurricane, tropicalstorm, cyclonic storm, tropical Read More …
DMPQ- Frontal Cyclones.
The systems developing in the mid and high latitude (35° latitude and 65° latitude in both hemispheres), beyond the tropics are called Frontal Cyclones or Wave Cyclones.According to polar front theory, the warm-humid air masses from the tropics meet the dry-cold Read More …
DMPQ:Write a short note on Shield.
Continental shield, any of the large stable areas of low relief in the Earth’s crust that are composed of Precambrian crystalline rocks. The age of these rocks is in all cases greater than 540 million years, and radiometric age dating has revealed Read More …