Answer:
I didnt really know how to put it into words, so I filled in your chart for you. Hope you like it and that I was not too late in completing this.
Answer:
element
Explanation:
An element cannot be broken down by any chemical means. However, nuclear reactions can lead to the generation of new elements.
Answer:
1) Make an observation.
2) Ask a question.
3) Form a hypothesis, or testable explanation.
4) Make a prediction based on the hypothesis.
5) Test the prediction.
6) Use the results to make new hypotheses or predictions.
Explanation:
The correct answer for this question would be option B. Greenhouse gases are needed for the survival of life on Earth because without greenhouse gases, Earth would be too cold for life to exist. Hope this answers the question. Have a nice day.