Explanation:
Make an observation.
Ask a question.
Form a hypothesis, or testable explanation.
Make a prediction based on the hypothesis.
Test the prediction.
Iterate: use the results to make new hypotheses or predictions.
I actually don't know what you mean...
Answer:
3)Sustainable development is development that is designed to improve the economic condition in less-developed countries.
3) Sustainable development means water is used at a rate that won't reduce the amount available for future use.
4)............
5)........
Earth is basically from matter, all the matter around the Universe came together to form Earth, the only way for Earth to grow much bigger is if there was an unlimited supply of matter, there isn't and therefore Earth cannot get much bigger than it is now.
