Homes can be heated by energy produced from alternative energy resources or fossil fuels. Which of this is an example of a home using an alternative energy source?

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?

Development has provided electrically for less money but what may be considered a cause of nuclear power