Concepts

December 20, 2016

Carcinogen

A carcinogen is any substance, radionuclide, or radiation that is an agent directly involved in causing cancer. This may be due to the ability to damage the genome or to the disruption of cellular metabolic processes. […]
December 20, 2016

Biodiversity

Biodiversity, a contraction of “biological diversity,” generally refers to the variety and variability of life on Earth. One of the most widely used definitions defines it in terms […]
December 20, 2016

Biodegradable Waste

Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms and other living things using composting, aerobic digestion, anaerobic digestion or […]
December 15, 2016

Atmosphere

An atmosphere is a layer of gases surrounding a planet or other material body, that is held in place by the gravity of that body. An atmosphere is more likely to be retained if […]
December 15, 2016

Aquifer

An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt) from which groundwater can be extracted using a water well. The study of water flow in […]
December 15, 2016

Atoll

An atoll  sometimes called a coral atoll, is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely. There may be coral islands/cays on the rim. The coral of the […]
December 15, 2016

Grand Slam

The Grand Slam tournaments, also called majors, are the four most important annual tennis events. They offer the most ranking points,prize money, public and media attention, the greatest strength and size […]
December 12, 2016

Superbugs

Bacteria can carry genes that allow them to survive exposure to the antibiotics we currently have. This means that infections caused by these bacteria are harder […]
December 9, 2016

karewas

The Kashmir valley is an oval-shaped basin, 140 km long and 40 km wide, trending in the NNW–SSE direction. It is an intermountain valley fill, comprising […]
December 9, 2016

Dune

In physical geography, a dune is a hill of sand built by wind or the flow of water. Dunes occur in different shapes and sizes, formed by interaction with the flow of air or water. […]
December 9, 2016

Android

Android is a mobile operating system developed by Google, based on the Linux kernel and designed primarily for touchscreen mobile devices such as smartphones and tablets. Android’s user interface is mainly based on direct manipulation, using touch gestures that loosely […]
December 7, 2016

Bay

A bay is a body of water connected to an ocean or lake, formed by an indentation of the shoreline. A large bay may be called a gulf, a sea, a sound, or a bight. […]