STEP 2
Think about a great invention in history and how it affectsyour life.

electric light bulb
/
refrigerator
/
camera
Invention
:
refrigerators
With them
:
we are able to preserve food for longer periods
Without them
:
we would not be able to preserve food for longer periods
electric light bulb
/
we are able to enjoy activities late at night
/
we would not be able to enjoy activities at night