Which has a greater mass, a kilogram of feathers or a kilogram of iron? which has a greater density? explain.

So, you asked which has the greatest mass , a kilogram of feather or a kilogram of iron.

They both have the same on mass, but on the volume they both going to be  be different. The reason why is going to be different is because of the  kilogram's smaller volume than the kilogram of feathers. So the density of iron would be greater.

Hope this helped you

Tobey

i'm pretty sure it is letter c.) car

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).