−78 °C is the Options: A . &nbspmelting point of carbon dioxide B . &nbspboiling point of carbon dioxide C . &nbspmelting point of oxygen gas D . &nbspboth a and b

−78 °C is the

Question

−78 °C is the

Options:

A . melting point of carbon dioxide

B . boiling point of carbon dioxide

C . melting point of oxygen gas

D . both a and b

Answer: Option D
Answer: (d).both a and b

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