In the circuit diagram, what does the symbol made of two long lines and two short lines with a positve and a negative sign at each end represent?

a.

an electrical conductot

b.

a closed switch

c.

a source of electrical energy

d.

an electrical resistor

If you were on a jury, do you think you would expect individual characteristics in the evidence? why or why not? what effects might it have if individuals expect to have individuals characteristics presented? this question is for forensic science

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

The ozone hole appears in antarctica during