True or false The density of homogenous body is the mass per unit volume of body​

Over half of the african-american population in the united states live in

Soil color only reflects the amount of organic matter present in soil.

Renaldo and nasreen build an electromagnet by wrapping a wire around a nail and connecting the wire to both terminals of a battery. when they test the electromagnet, it can pick up 6 paper clips. their teacher wants all groups to pick up at least 10 paper clips. what could renaldo and nasreen do to increase the number of paper clips their electromagnet picks up?