annual: Adjective for one thing that occurs yearly. (in botany) A plant that lives just one 12 months, so it often has a showy flower and produces many seeds.

chemical: A substance fashioned from two or extra atoms that unite (bond) in a set proportion and construction. For instance, water is a chemical made when two hydrogen atoms bond to 1 oxygen atom. Its chemical formulation is H2O. Chemical additionally could be an adjective to explain properties of supplies which are the results of varied reactions between totally different compounds.

eating regimen: (n.) The meals and liquids ingested by an animal to offer the vitamin it must develop and keep well being. Typically it is a particular food-intake plan.

epidemiologist: Like well being detectives, these researchers look to hyperlink a selected sickness to what might need prompted it and/or allowed it to unfold.

leach: (in geology and chemistry) The method by which water (usually within the type of rain) removes soluble minerals or different chemical substances from a stable, reminiscent of rock, or from sand, soil, bones, trash or ash.

lead:  A poisonous heavy steel (abbreviated as Pb) that within the physique strikes to the place calcium desires to go (reminiscent of bones and enamel). The steel is especially poisonous to the mind. In a baby’s creating mind, it may possibly completely impair IQ, even at comparatively low ranges.

steel: A sort of fabric conducts electrical energy properly, tends to be shiny (reflective) and is malleable (which means it may be reshaped with warmth and never an excessive amount of power or strain).

vary: The complete extent or distribution of one thing. For example, a plant or animal’s vary is the realm over which it naturally exists. (in math or for measurements) The extent to which values can differ (reminiscent of the very best to lowest temperatures). Additionally, the gap inside which one thing could be reached or perceived.

resident: Some member of a neighborhood of organisms that lives in a selected place. (Antonym: customer)

threat: The prospect or mathematical chance that some dangerous factor would possibly occur. For example, publicity to radiation poses a threat of most cancers. Or the hazard — or peril — itself. (For example: Amongst most cancers dangers that the individuals confronted have been radiation and ingesting water tainted with arsenic.)

poisonous: Toxic or capable of hurt or kill cells, tissues or complete organisms. The measure of threat posed by such a poison is its toxicity.

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