Correct Answer is A. They were able to increase their productivity due to the popularity of tractors.
1. observing
2. forming hypotheses
3. testing hypotheses
4. analyzing data
5. evaluating results
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Warm ocean currents originate near the equator and move towards the poles or higher latitudes while cold currents originate near the poles or higher latitudes and move towards the tropics or lower latitudes. The current's direction and speed depend on the shoreline and the ocean floor.
Answer:
This is an example of biotechnology because it seeks to solve a societal problem using biological entities.