Geography

Tides are great bulges of water caused by the gravity of the moon and the sun. Attracted by gravity, these bulges move around the earth’s ocean, causing water level to rise and fall. There are two main tides that are higher or lower than average. They occur twice monthly and are called neap and spring … Read more

Negatives of Interlinking of rivers: This entails environmental cost. Interlinking would destroy water bodies as each river has unique flora and fauna based on its ecology. Mixing of waters will adversely affect this uniqueness, producing unforeseen consequences. Interlinking will lead to submergence of forest. This will worsen climate change. Forest, which act as carbon sinks … Read more

The atmosphere is made up of different types of gases, water vapors and dust particles. The composition of the atmosphere is not static. It changes according to the time and place.   Water vapor is unique in that its concentration varies from 0-4% of the atmosphere depending on where you are and what time of … Read more

When two large air masses meet, the boundary that separates them is called a front. Fronts represent fairly abrupt transitions between two large air masses.  This means that when two different bodies of air come together, they do not readily mix. Rather, each body of air will retain its individual properties, and a boundary forms … Read more

Coral reefs are built by and made up of thousands of tiny animals—coral “polyps”—that are relatedto anemones and jellyfish.   Different types of coral reefs:   Fringing reefs are reefs that grow directly from a shore. They are located very close to land,and often form a shallow lagoon between the beach and the main body … Read more

Rainwater harvesting is the process to capture and store rainfall for its efficient utilization and conservation to control its runoff, evaporation and seepage. Some of the benefits of rainwater harvesting are: It increases water availability It checks the declining water table It is environmentally friendly It improves the quality of groundwater through dilution, mainly of … Read more

It is a kind of irrigation method which saves water and fertilizer by allowing water to drip slowly to the roots of the plants, either onto the soil surface or directly onto the root zones, through a network of valves, pipes , emitters etc. It is done through narrow tubes that deliver water directly to … Read more

Merits: Most of the canals provide perennial irrigation. This saves the crops from drought conditions and helps in increasing the farm production. Canals carry a lot of sediments brought down by the rivers. The sediments is deposited in the agriculture fields which adds to the fertility. Some of the canals are parts of multipurpose project … Read more

Use of food additive or processing aid No article of food shall contain any food additive or processing aid unless it is in accordance with the provisions of this Act and regulations made thereunder. Explanation– For the purposes of this section, “processing aid” means any substance or material, not including apparatus or utensils, and not … Read more

Dynamic Theory: Flohn (1951) according to Flohn, the monsoon is a global phenomenon due to global shift in pressure belts. The shift in pressure belts bring the ITC much more into the northern margin is around 30 degrees north over the Indian subcontinent. This brings the SE trades over the Indian subcontinent as south westerly … Read more