pesticid

pesticid

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 pesticides: for example, insecticides kill insects, and herbicides kill weeds. The chemicals used in pesticides can sometimes be toxic to humans, however, so organic farming endeavours to use natural rather than synthetic substances as pesticides.

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Pievienot attēlu

Vārdšķira: noun
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Nozare/domēns: Natural environment
Category: Climate change
Company: BBC
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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; ...

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 ...

solarna energija

Natural environment; Climate change

Energy derived from the sun's rays.

stratosfera

Natural environment; Climate change

The second lowest level of the atmosphere, extending from about 10km to about 50km altitude. The ozone layer, the part of the earth's atmosphere with the greatest concentration of ...

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Vesna Kovacevic

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Nozare/domēns: Psychology Category: Behavior analysis

grčevi u želucu

Stanje bića - potišteno ili zlovoljano ponašanje, pojavljuju se grčevi, ili razdražljivost. Izvorno značenje ove riječi izvedena iz migrena, što znači ...