During an el niño year, there is increased precipitation in the southern united states, but the north is warmer and dry. where does the moisture causing the precipitation in the south come from? a) the pacific ocean b) the gulf of mexico c) the polar jet stream d) the southern atlantic ocean

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

answer: i'm not sure which is which for i get confused on it all the time but i can tell you that the answer lies with the convex and concave devices. i hope this you. have a good day and best of luck to you!

explanation: