Lecture

This lecture introduce on Lithosphere. The lithosphere is the solid, rocky crust covering the Earth. It covers the surface of earth from the top of Mount Everest to…

Major purpose of this lecture is to present on What is the source of Earth’s Energy. Energy is transferred between Earth’s spheres, but it is not created…

The cryosphere is made up of all of the frozen water on Earth. Snow, ice, sea ice, glaciers, ice shelves, icebergs, and permafrost are all part…

The aim of this lecture is to present on Earth’s Spheres. A system is a group of related objects or parts that work together to form a…

Prime purpose of this lecture is to present on Geosphere. The geosphere is the solid Earth that includes the continental and ocean crust as well the various…

The biosphere is the “life zone” of the Earth, and includes all living organisms (including humans), and all organic matter that has not yet decomposed. The…

The Earth is surrounded by a blanket of air, which we call the atmosphere. The atmosphere consists of four unique layers (the troposphere, the stratosphere, the…

The Earth is a system consisting of four major interacting components: the atmosphere, the biosphere, the hydrosphere and the geosphere. Earth Systems Overview is the study of how the four spheres…

El Nino means warming of sea surface waters in the eastern Pacific Ocean caused by slowing of Pacific gyre. “Warm phase”, occurs every 3-7 years. The shift…

General purpose of this lecture is to present on Cloud Formation. Formation of Clouds. Clouds are formed when air containing water vapor is cooled below a critical…

Lightning transfers electrons from the atmosphere to Earth. Electrons build up in clouds because wind causes them to rub together (Charging by friction). The negative charges in…

Hurricanes are severe tropical storms that form in the southern Atlantic Ocean, Caribbean Sea, Gulf of Mexico, and in the eastern Pacific Ocean. Hurricanes gather heat…