The ozone layer is a portion of earth’s atmosphere that contains high levels of ozone. The atmosphere is divided into five layers: the troposphere, the stratosphere, the mesosphere, the thermosphere, and the exosphere. The boundary of the outermost layer, the exosphere, extends roughly to 960-1000 kilometers above the earth.

A press release issued by EurekAlert says that a gene that enables rice to survive complete submergence has been identified by a team of researchers at the International Rice Research Institute (IRRI) in the Philippines and at the University of California's Davis and Riverside campuses.

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Honey is a sugar secretion deposited by the honeybees, Apis mellifera Linn, and other species of .Apis in the honeycomb. It must be free from foreign substance, such as parts of insects, leaves, etc., but may contain pollen grains.

Order : Hymen optera.

Family : Apidae.

The continuing world-wide concerns over EMF, particularly those associated with the rapidly-growing mobile telephone communication systems and from the use of AC electric power.Its goal of uniform international standards for exposure to EMF which identifies knowledge needed for a better assessment of any possible health risks.There is also growing public concern about cell phones and base stations

sometimes the electrical signals flowing through the heart don't "communicate" properly with the heart muscle, and the heart can start beating in an abnormal pattern — an arrhythmia.Heart block is often caused by a congenital heart defect, although it can also result from disease or injury.

Normally, the immune system produces white blood cells and antibodies that fight viruses and bacteria. The infection-fighting cells are called T-cell lymphocytes.When only a few organisms are present on or in a tissue, an infection will not necessarily develop. However, when a critical number is exceeded, it is very likely that the tissue will become infected.

Water supplies are compromised when infrastructures break down due to hurricanes, floods, tsunamis, earthquakes, power blackouts, or terrorist attacks, all prevalent events around the world in the last several years. Reconstruction efforts require rapid re-establishment of the water supply.