Q7. Fuel cells are similar to a battery except unlike batteries, they don’t need to be recharged. Fuel causes
air pollution and noise, while fuel cells do not cause either. Fuel cells don’t cause pollution because they
don’t create waste like fuel. Fuel cells are also very efficient, so efficient that fuel cells have been
providing energy on spacecrafts for a very long time.
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READING PRACTICE TEST - MATCHING HEADINGS – TEST 15
A. Changing Habits
E. Popular but Useless
B. Eating Out
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