Answer:
physical law (plural physical laws) A universal statement about the operation of nature, based on empirical observations of physical behavior, tested using scientific method.
Explanation:
Answer:
i dont know dude but ask someone who is in your grade lol
Explanation:
Do you speak English? If so I can help you in the comments
<span>The relative hardness of a mineral
can be tested by the Moh’s scale or the mineral hardness. The Moh’s scale can
be characterized by the ability of the mineral to resist scratch resistance by
scratching a harder or softer mineral. It has a scale of 1 to 10 where 1 being
the softest and 10 being the hardest. The relative hardness of a mineral can
best be tested by scratching the mineral across a glass plate. The answer is
letter A. </span>
B acid rain in an area kills fish in a lake