Geography

These are steep valleys, forming deep gorges on the ocean floor. They are mainly restricted to the continental shelf, slope and rise.  Broadly, there are three types of submarine canyons: Small gorges which begin at the edge of the continental shelf and extend down the slope to very great depths, e.g., Oceanographer Canyons near New … Read more DMPQ- What are Submarine Canyons

The following factors affect the distribution of temperature of ocean water: Latitudes The temperature of surface water decreases from equator towards the poles because the sun’s rays become more and more slanting and thus the amount of insolation decreases poleward accordingly. The temperature of surface water between 40°N and 40°S is lower than air temperature … Read more DMPQ- Discuss the factors affecting temperature distribution of Ocean water.

A farming systems that are “capable of maintaining their productivity and usefulness to society indefinitely and must be resource-conserving, socially supportive, commercially competitive,and environmentally sound.” Major components of sustainable agricultural system Soil and water conservation to prevent degradation of soil productivity Efficient use of limited irrigation water without leading to problems of soil salinity,alkalinity and … Read more DMPQ:What is Sustainable Agriculture system? What are its components?

Fold mountains are created where two or more of Earth’s tectonic plates are pushed together. At these colliding, compressing boundaries, rocks and debris are warped and folded into rocky outcrops, hills, mountains, and entire mountain ranges. Fold mountains are created through a process called orogeny. An orogenic event takes millions of years to create a fold mountain. Fold mountains are often associated with continental crust. … Read more DMPQ- Write a short note on Fold mountains.

There are mountains, basins, plateaus, ridges, canyons and trenches beneath the ocean water too. These relief features found on the ocean floor are called Submarine Relief. The ocean basins are broadly divided into four major subdivisions. They are; Continental Shelf: They slope seaward from coast to a point where the slope becomes very steep. This shallow submerged extension … Read more DMPQ- Oceanic land forms are not plain but possess equivalent diversity as that of Continents. Comment

The continental drift hypothesis was developed in the early part of the 20th century, mostly by Alfred Wegener. Wegener said that continents move around on Earth’s surface and that they were once joined together as a single supercontinent. While Wegener was alive, scientists did not believe that the continents could move. Alfred Wegener proposed that … Read more DMPQ: What is continental drift theory? Write down the evidence for continental drift?

An eclipse of the Sun happens when the New Moon moves between the Sun and Earth, blocking out the Sun’s rays and casting a shadow on parts of Earth. The Moon’s shadow is not big enough to engulf the entire planet, so the shadow is always limited to a certain area (see map illustrations below). This area changes during … Read more DMPQ-What is solar eclipse? What are different types of eclipses?

(a)Great lakes  Great Lakes of North America are a series of interconnected freshwater lakes which connect to the Atlantic Ocean through the Saint Lawrence Seaway.Consisting of Lakes Superior, Michigan, Huron, Erie, and Ontario . Superior, Huron, Michigan, Erie, and Ontario [In the order of largest to smallest].Lake Superior is the largest continental lake in the … Read more Give an account for the following: (map based questions) a) Great lakes b) Lake Baikal c) Lake Tanganyika d) Aral sea