What is the part of the earth that you walk on called? mantle crust asthenosphere core

Dna is colied into chromosomes in a cell

Can nonrenewable resources be used sustainably?

Select all the correct answers. for a claim about the natural world to be considered scientific, what attributes must it have? a). it must be open to modification if new evidence doesn't completely support it. b). it must be based on scientific observations that can be repeated in a controlled setting. c). it must be applicable to future events and occurrences. d). it must be consistent with only a small portion of relevant observations or data.