The answer is D I believe
Answer:
I think it's a
Explanation:
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Answer:
Like most other metals, Gallium is solid at room temperature (or liquid if it is too hot in your room). But, if it is held [in hands] for long enough, it melts in your hands, and doesn't poison you like Mercury would. This is because of its unusually low melting point of (~29 degree Centigrade).
- It melts once it reaches its melting point.
:)
Physical properties are those which can be observed without any change in composition of the substance. Hence, a is the answer.
Answer:
ore is naturally occuring solid material from which a metal or valuable mineral can be extracted
profitably.
