What business factor makes it difficult for companies to manage forests sustainably?

Why is terracing used in southeast asian agriculture?

Recrystallization definition earth science

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?