Sania bibi
1 day ago
·🚀 Volunteer Activity Hub
🧠 I just solved a Brain Quest!
**The Invisible Shield** [Science Mystery]
_I am invisible, yet I protect all life on Earth.
Without me, the Sun would burn everything alive.
Scientists discovered a hole in me in 1985.
What am I?_
Think you can solve it? 👉 https://my.paksc.org/brain-quest/the-invisible-shield
+5 XP earned!
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