gymnastlyfe123
gymnastlyfe123
22.11.2019 • 
English

Mark knows that his research paper will be about solar energy. which question is too broad for a topic?

a.what is solar energy and how does it effect the world's economy?
b.what new technology will make solar energy more affordable?
c.how does use of solar energy the environment?
d.what are the benefits and difficulties of home use of solar energy?

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