The answer is D. desalination
You'll need an iron nail, copper wire, a D-cell battery, paper clips or pins, and masking tape.
wrap the copper wire around the nail downward. then wrap one end of the exposed wire around the positive side of the battery and the other end around the negative side of the battery and use the tape to hold them together. place the nail near the paper clip/pin. you can experiment with different sizes too, but this should work (:
Answer:
Phytoplankton use carbon dioxide and produce oxygen during photosynthesis; phytoplankton, fish, and seals use oxygen and produce carbon dioxide during respiration. Which can provide the most energy in an ecosystem
Explanation:
Answer:
DNA consists of ribosomes repeating structural unit
All of the above
Explain because it's all in a greenhouse