yearly: an adjective for something that happens every year. (In botany) Since it is a plant that only lives for one year, it usually produces showy flowers and produces many seeds.
chemicals: A substance formed when two or more atoms combine (combine) in a certain proportion and structure. For example, water is a chemical produced when two hydrogen atoms combine with one oxygen atom.Its chemical formula is H2O. Chemistry can also be used as an adjective to describe the properties of materials that result from various reactions between different compounds.
diet: (n.) Foods and liquids that animals ingest to provide the nutrients they need to grow and stay healthy. In some cases, this may be a specific dietary intake plan.
epidemiologist: Like health detectives, these researchers try to link a particular disease to what might have caused it or caused its spread.
leach: (in geology and chemistry) the process by which water (often in the form of rain) removes soluble minerals and other chemicals from solids such as rocks, or from sand, soil, bones, trash, and ash.
lead: A toxic heavy metal (abbreviated as Pb) that moves calcium to where it wants to go in the body (bones, teeth, etc.). This metal is especially toxic to the brain. Even at relatively low levels, IQ can be permanently impaired in a child's developing brain.
metal: Certain materials conduct electricity well, are shiny (reflective), and malleable (meaning they can be changed shape with heat without much force or pressure).
range: the total extent or distribution of something. For example, a plant or animal's habitat is the area in which it naturally occurs. (in mathematics or measurement) a range over which a value varies (such as from the highest temperature to the lowest temperature). Also, the distance something can reach or be perceived.
Resident: Members of a biological community that live in a particular location. (Antonym: visitor)
danger: The probability or mathematical probability that something bad will happen. For example, exposure to radiation poses a risk of cancer. Or danger, or danger itself. (for example: The cancer risks people faced included drinking water contaminated with radiation and arsenic.. )
toxic: Can be toxic or can harm or kill cells, tissues, or whole organisms. A measure of the risk posed by such poisons is their toxicity.
Source: www.snexplores.org
