ugljik dioksid

ugljik dioksid

CO2 is made up of the elements carbon and oxygen. It exists quite naturally in our atmosphere, as part of the carbon cycle. Everyday processes in the plant and animal world both add CO2 to the atmosphere and take it out. However, because it is a greenhouse gas - meaning it affects the temperature of the earth - the exact level of CO2 is important. Burning fossil fuels releases CO2 into the atmosphere, hence the anxiety that extensive use of these fuels is causing climate change.

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Pramonės šaka / sritis: Natural environment
Category: Climate change
Company: BBC
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ugljik dioksid (CO2)

Geography; Physical geography

An atmospheric gas which has in modern times made up approximately 0.03% of the atmosphere by volume. It is vital for photosynthesis and for its contribution to the greenhouse ...

karbon dioksid

Health care; Cancer treatment

A colorless, odorless gas. It is a waste product made by the body. Carbon dioxide travels in the blood from the body’s tissues to the lungs. Breathing out clears carbon dioxide ...

karbon dioksid

Health care; Hospitals

CO2 is a waste product formed by the production of energy in the cells. It is eliminated by the lungs or neutralized by the kidney.

karbon dioksid

Chemistry; General chemistry

A colorless, odorless gas produced by respiration and combustion of carbon-containing fuels.

karbon dioksid

Health care; General

An odorless, colorless gas produced as the end product of aerobic respiration.

protokol iz Kjota

Natural environment; Climate change

An international agreement adopted in December 1997 in Kyoto, Japan. The protocol sets binding greenhouse gas emissions targets for developed countries that would reduce their ...

organska poljoprivreda

Natural environment; Climate change

There is no universally accepted definition of organic farming, and each country regulates what can and cannot be labelled "organic". In general, it describes a form of ...

ozon

Natural environment; Climate change

Ozone is made up of three oxygen atoms. It has benefits and dangers depending on where in our atmosphere it occurs: near ground level, it is a pollutant that affects respiration; ...

pesticid

Natural environment; Climate change

A pesticide is a substance used to kill a pest, and in a farming context a pest is anything that attacks or competes with crops. Hence, there are many different types of ...

nepušačka zona

Natural environment; Climate change

A smoke-free zone (or smokeless zone, or smoke control area) is not, in this context, anything to do with cigarettes. It refers to an area, designated by a local authority, where ...