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

Describe the three ray tracing steps used to identify an image for the given situation.

Which of the following best describes the shape of earth's orbit? a.ellipticalb.circularc.spirald.figure eight

20) what is a magnetic field? 21) in which direction do magnetic field lines always point? 22) sketch a diagram showing how a plotting compass points around a 23) name two magnetic poles that will: a) attract each other b) repel each other. 24) explain why you can use a compass to navigate. 25) what's an electromagnet? 26) list two ways to increase the strength of an electromagnet. 27) the wire in a simple motor feels a force when a current flows through it. why is this? i need answers to check mine