WAEC 2025 PHYSICS ANSWER


PHYSICS OBJ
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11-20: ADBBCCDCBC
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41-50: BBACBBCABC


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(12aiv)
Mention one example of natural Radioactivity

(PICK ANY ONE)
(i) Uranium-238
(ii) Radium-226
(iii) Potassium-40
(iv) Thorium-232
(v) Radon-222