JSC Unit: 6; Lesson: 6(C); Announcement On Board 2
Oxygen and the air pressure are always being monitored. In the event of a lack of oxygen, an oxygen mask
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Day: January 7, 2022
Unit: 11; Lesson 2: Renewable energy sources -2
In a speech at the 90th Science Congress, internationally acknowledged scientist and former Indian president Mr APJ Abdul Kalam mentioned
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