'R' in science

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Can you name the R's in these science questions?

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QuestionAnswer
Element with atomic number 45
A distillation technique involving the condensation and return of vapours
The most common food source on the planet
A part of a longitudinal wave in which the density of the particles of the medium is less than the normal density.
A disease commonly associated with dogs and bats
A wave whose height is more than twice the mean of the largest third of waves in a wave record
A fractional value representing the ratio of the relative speeds of objects before and after a collision.
The element responsible for Curie's death.
From latin 'stiiffness of death'
An evolutionary grade of animals, comprising today's turtles, crocodilians, snakes, lizards, and tuatara,
A measure of how strongly a substance opposes the flow of current
The most common viral infectant of the human common cold
Another name is equilateral quadrilateral
When the frequency of an external force matches the natural frequency of the body then the body oscillates with large amplitude.
Organelle associated with protein synthesis
A mammal which primarily digests plant based foods.
A kind of inflammation of the joints.
The gaining of electrons
Physicist widely credited with first 'splitting the atom' in 1917
A type of surface acoustic wave that travels on solids

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