Indian Ocean Dipole (IOD)
Indian Ocean Dipole (IOD) is an atmosphere-ocean coupled phenomenon in the tropical Indian Ocean (like the El Nino is in the tropical Pacific), characterised by a difference…
Earthquake – the pressure release phenomena
What is an earthquake? • An earthquake is what happens when two blocks of the earth suddenly slip past one another. • The surface where they slip…
United Nations Convention on the Law of the Sea (UNCLOS)
What is UNCLOS? The United Nations Convention on the Law of the Sea (UNCLOS), also called the Law of the Sea Convention or the Law of the…
Clouds – Formation and Appearance
What are clouds? Clouds are the visible aggregate of minute particles of water and/or ice. They form when water vapor condenses. They can grow very tall or…
Comets – structure and naming
What are comets? Comets are frozen leftovers from the formation of the solar system composed of dust, rock and ices. The word comet comes from the Latin…
Why British tea planters did not succeed beyond the Darjeeling area?
Though consumption of tea in India has been mentioned in the Ramayana (750-500 BCE) , commercial production of tea did not begin until the arrival of the…
How dew is formed?
What is dew? Condensation of water droplets on the objects at the surface of the earth such as leaves and grasses are called as ‘Dew’. When the…
Local winds around the world
Local wind systems influence the weather pattern where ever they blow. Some important local winds are: Mountain and Valley Breezes Land and Sea Breezes Berg Location :…
How Moon impacts Earth?
How Moon was formed? In a cataclysmic event some 60-175 million years after the birth of the solar system 4.5 billion years ago, a Mars-sized planet called…
Volcano – Causes , Types , Effects and Distribution
A volcano is an opening in the earth’s crust through which magma, gases and ash are released to the earth’s surface. The molten rock material found in…