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താപനില 7°C ൽ നിന്ന് −12°C ലേക്ക് താഴുന്നു. വീഴ്ച എത്ര വലുതാണ്?

A19°C
B7°C
C12°C
D5°C
Answer & Solution
Correct answer: A. 19°C
വീഴ്ച 7 − (−12) = 7 + 12 = 19°C.
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