GC: n CT: Buildings demand energy in their life cycle right from its construction to demolition. Studies on the total energy use during the life cycle are desirable to identify phases of largest energy use and to develop strategies for its reduction. In the present paper, a critical review of

See “fuel”: https://sierterm.es/content/fuel/?lang=en Please, read remark number 5.

CG: n CT: The ozone layer is a belt of naturally occurring ozone gas that sits 9.3 to 18.6 miles (15 to 30 kilometers) above Earth and serves as a shield from the harmful ultraviolet B radiation emitted by the sun. Ozone is a highly reactive molecule that contains three

GC: n CT: Pollution, we hear it every other day at school, college and read about it in newspapers. So what is it? Pollution occurs when pollutants contaminate the natural surroundings; which brings about changes that affect our normal lifestyles adversely. Pollutants are the key elements or components of pollution

GC: n CT: Preservation of Biodiversity. Biodiversity is defined as “the variability among living organisms from all sources including, inter alia, terrestrial, marine and other aquatic systems and the ecological complexes of which they are a part; this includes diversity within species, between species and of ecosystems.” Biodiversity is considered

GC: n CT: If you are not familiar with working around radiation or radioactive material, the terms and concepts may confuse you at first. Let’s look at some of the properties of radiation and radioactive material. Radiation – Radiation is energy in the form of waves or particles given off

GC: n CT: At present, then, checkers and correctors play a small but useful role in helping people to remove minor errors from their written work. Some systems are just checkers – they flag errors but make no attempt to offer suggestions – and this is often all that is

GC: n CT: The United Nations Framework Convention on Climate Change (UNFCCC) is an international environmental treaty (also known as a multilateral environmental agreement) that was opened for signature at the Earth Summit held in Rio de Janeiro in 1992 and came into force in 1994. The ultimate objective of