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The World’s Oxygen – level 2
09-09-2019 15:00
People are worried about the world’s oxygen because many...Problems with Solar Panels – level 3
06-09-2019 15:00
In the past few years, several Walmart stores roofs...Facebook Warning Messages – level 2
04-09-2019 07:00
Facebook is testing a new tool, which can send...Weapons Against Hurricanes – level 2
03-09-2019 07:00
From the 1950s, people started thinking if they could...Weapons Against Hurricanes – level 3
03-09-2019 07:00
Since the 1950s, people have wondered if nuclear weapons...