- المجال: Government
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U.S. Environmental Protection Agency (EPA) is a federal agency responsible for the development and enforcement of regulations for human health and environment protection. The agency researches and sets standards for environmental programs and delegates. It was founded in 1970 following the proposal ...
Any one of the less common gases found in the Earth's atmosphere. Nitrogen, oxygen, and argon make up more than 99 percent of the Earth's atmosphere. Other gases, such as carbon dioxide, water vapor, methane, oxides of nitrogen, ozone, and ammonia, are considered trace gases. Although relatively unimportant in terms of their absolute volume, they have significant effects on the Earth's weather and climate.
Industry:Natural environment
A prolonged period of excessive heat, often combined with excessive humidity.
Industry:Natural environment
Η πραγματική κατασκευή ή καθαρισμό φάση μια εκκαθάριση τοποθεσία Superfund.
Industry:Agricultural chemicals
Climate in a narrow sense is usually defined as the "average weather," or more rigorously, as the statistical description in terms of the mean and variability of relevant quantities over a period of time ranging from months to thousands of years. The classical period is 3 decades, as defined by the World Meteorological Organization (WMO). These quantities are most often surface variables such as temperature, precipitation, and wind. Climate in a wider sense is the state, including a statistical description, of the climate system.
Industry:Natural environment
Κάθε χημικό προϊόν που μπορεί να χρησιμοποιηθεί για τη μονάδα δίσκου μακριά τα έντομα, αρκούδες, σκυλιά ή άλλα παράσιτα.
Industry:Agricultural chemicals
The recent and ongoing global average increase in temperature near the Earths surface.
Industry:Natural environment
Έρευνα η οποία εξετάζει το recalcitrance, η βιοδιαθεσιμότητα, η τοξικότητα, η διαλυτότητα, κλπ των καταλοίπων φυτοφαρμάκων. Περισσότερες πληροφορίες σχετικά με αυτό το θέμα μπορεί να βρεθεί στην τοποθεσία της FDA για τα υπολειμματικά φυτοφάρμακα παρακολούθησης.
Industry:Agricultural chemicals
Ενός φυτοφαρμάκου που μπορούν να πωλούνται ή να χρησιμοποιείται από μόνο χρησιµοποιούνται.
Industry:Agricultural chemicals
Θα προκύψει ένα μέτρο το τυχαίο ότι η βλάβη σε ζωή, υγεία, ιδιοκτησία ή το περιβάλλον.
Industry:Agricultural chemicals
The energy range just beyond the violet end of the visible spectrum. Although ultraviolet radiation constitutes only about 5 percent of the total energy emitted from the sun, it is the major energy source for the stratosphere and mesosphere, playing a dominant role in both energy balance and chemical composition.
Most ultraviolet radiation is blocked by Earth's atmosphere, but some solar ultraviolet penetrates and aids in plant photosynthesis and helps produce vitamin D in humans. Too much ultraviolet radiation can burn the skin, cause skin cancer and cataracts, and damage vegetation.
Industry:Natural environment
