The last one because plants move oxygen out to the atmosphere while taking in C02
Answer:
The Sun
Explanation:
it is essential to doing photosynthesis
Gallstones - I'm not sure what you mean by code
The nine activities that scientists engage in as a part of scientific inquiry are the following:
1. Observe
2. Define the problem
3. Form a study question
4. Research the problem
5. State the expectations (hypothesis)
6. Experiment and gather data
7. Analyze the results
8. Reflect on the findings
9. Communicate with the wider community
