Your friend wants to make an electromagnet strong enough to lift a heavy metal object. What are some suggestions you would give him on how to make the electromagnet strong enough? tried to make it scince didnt have the opption

The answer is b.the gaseous state is electrically positive, while the plasma state is electrically negative. 

There is no graph to look at on here, but i shall explain them to you. a line graph is just in its title it’s a graph with a line running through the dots to show an increase or decrease. a bar graph is used to show how much or how little something is so a comparison. a scatter plot is used to graph points to tell the data. and i don’t know what a histogram is.