How do you produce a magnetic field with a wire?

What is the amount of organic matter in all living organisms in a habitat called?

Which types of seismic waves travel through earths interior? select all that apply. a) l waves b) p waves c) s waves

Sam hated the long nights of winter! his mother called him in from playing so early: around 4: 30 pm! it is usually dark out when sam is eating supper. what letter represents the long nights where sam lives? a) a. b) b. c) c. d) d.