Examlex
Which of the following reacts most violently with water?
Genus
A term in taxonomy representing a higher classification grouping that consists of similar species.
Species
A congregation of organisms that resemble each other and can engage in gene exchange or reproduction.
Concrete
Describes a material composed of cement, water, sand, and gravel, used in building construction or a concept having a physical existence; tangible.
Physical Object
An entity that exists in the physical world and can be perceived by the senses.
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