Activity diary
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Introduction
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Activity diary
Energy situation
Energy situation in Japan and the world
Existing energy development
About RENEWABLE
energy
Types of renewable energy
Benefits of renewable energy
Disadvantages of renewable energy
T
hink about energy
Think about energy
a familiar generator
idea collection
idea bulletin board
P
ower saving check
S
ummary
summary
source
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Home
Energy situation
About RENEWABLEThink about energy
Power saving check
Summary
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