Geography

Excessive rainfall in river catchments or concentration of runoff from the tributaries and river carrying flows in excess of their capacities. Backing water in tributaries at their confluence with the main river. Synchronization of flood peaks in the main rivers or their tributaries. Intense rainfall when river is flowing full. Poor natural drainage system. Landslides … Read more DMPQ- What are the primary causes for Floods ?

According to Albert Einstein’s theory of general relativity, black holes are uninhabitable chasms of spacetime that end in a ‘singularity,’ or a mass of infinite density. Black holes, with gravitational fields so powerful that not even light could escape them, were inferred by quantum physics about a century ago. It’s a place so bleak that even the laws of physics … Read more DMPQ- What exactly is a black hole?

A glance at the world map reveals that most of the desert region is on the western part of the continent for example. Mohave desert in North America, Atacama in Southern America, Namib, Sahara in Africa , Arabian in west Asia. The reasons for such homogeny are: The hot desert lie astride the Horse latitudesor … Read more DMPQ: why desert are on the western margins of the continent?

On 23 December 2005, the Government of India enacted the Disaster Management Act, which envisaged the creation of National Disaster Management Authority (NDMA), headed by the Prime Minister, and State Disaster Management Authorities (SDMAs) headed by respective Chief Ministers, to spearhead and implement a holistic and integrated approach to Disaster Management in India. NDMA Vision: … Read more DMPQ- Write a short note on NDMA.

The continental shelf is the extended margin of each continent occupied byrelatively shallow seas and gulfs. It is the shallowest part of the ocean showing anaverage gradient of 1° or even less.The width of the continental shelves vary from one ocean to another. The average widthof continental shelves is about 80 km. Significance of Continental … Read more DMPQ: What is continental shelf? Mention the significance of Continent shelf( Geography)

A plain is a broad area of relatively flat land and is one of the major landforms on the earth surface. There are various types of Plains which are discussed as: Structural plains: relatively undisturbed horizontal surfaces of the earth. They are structurally depressed areas of the world that make up some of the most extensive … Read more DMPQ- What are Plains? What are different type of Plains?

Apart from incessant rainfall during the monsoon, there are many contributory factors, natural and man-made. At the crux is the very nature of the river Brahmaputra —dynamic and unstable. Its 580,000 sq km basin spreads over four countries: China, India, Bangladesh and Bhutan, with diverse environments. The Brahmaputra features among the world’s top five rivers … Read more DMPQ- Why Assam and Bihar state are more prone to floods?

Sedimentary or detrital rocks :   They Formed as a result of denudation (weathering and erosion).These deposits through compaction turn into rocks. This process is called lithification. Sedimentary rocks Cover 75 per cent of the earth’s crust but volumetrically occupy only 5 per cent. They are layered or stratified of varying thickness. Example: sandstone, shale etc. … Read more DMPQ: What are sedimentary rocks? What are the its different types? List down the features of sedimentary rocks.

Sex ratio is used to describe the number of females per 1000 of males. Sex ratio is a valuable source for finding the population of women in India and what is the ratio of women to that of men in India. In the Population Census of 2011 it was revealed that the population ratio in … Read more DMPQ- Evaluate the changing stats of sex ration in India

Earth’s core is the very hot, very dense center of our planet. The ball-shaped core lies beneath the cool, brittle crust and the mostly-solid mantle. The core is found about 2,900 kilometers (1,802 miles) below Earth’s surface, and has a radius of about 3,485 kilometers (2,165 miles). Planet Earth is older than the core. When … Read more DMPQ- Write an essay on the Earth’s core.