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☆☆☆☆☆when wind makes a wind tower's blades turn, there is a generator that makes electricity out of it.
Making observations
To state whether their hypothesis was supported by the data.
D) Number 2 because the experiment was repeated and the results were always the same
Ethanol comes from corn, we all know that. But the problem created by using ethanol as a biofuel is that it puts a greater demand on corn stocks which can and will go to the point where demand is much higher than supply. Corn is also grown as a foodstuff for humans and a feedstuff for livestock. So when you get a demand for ethanol AND a demand for corn as a food and feed, problems like availability for ethanol production become very difficult and more of an ethical and food issue than anything. Only so much corn can be grown every year and corn can be grown only in certain areas, so using ethanol as a biofuel alone is an inconceivable feat in itself. Other biofuels or alternative energy sources for vehicles must be conceived in order for corn to be freed up for use as food.
The grassroots campaigning led to the victories in 2006 and 2008 and showcased the rise of Barack Obama.
Biodiesel
The treated couch is the experimental.
green energy source
Empiricism .
analyzing the data.
science cannot answer philosophical questions
the cost of nuclear fuel was low - Apex
Collecting data
Making a prediction
The U.S. government increased its investment in researching alternative fuel sources.
Forming a hypothesis
Americans felt less safe after the accident at Three Mile Island. - APEX.
Forming a hypothesis
Using more air conditioning in the summer - apex
