a(n)
exposure is a repeated or prolonged
exposure (over months or years) that may bring about slowly
developing symptoms. these exposures do not cause
immediate, obvious harm and a person may not see, feel, or
smell the danger. effects, however, may be permanent.
acute
chronic
emergency
short

Arock collection comes from which part of earth?

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.