Answer:
phylum Annelida and and leeches
Explanation:
D. scientists can easily tell which variable caused the results.
Good luck!
Answer:
Saving wood
Explanation:
It takes less water to break down waste paper than it does to break down wood. If paper recycling is used to the full potential, wood is only needed once to produce 5 cycles of paper which also means saving waste from landfill 5 times.