In order to identify the streak of an unknown mineral, what needs to be done? A)Streak can be seen by shining a black light on the unknown mineral.
B)Streaks can be seen in rocks as stripes, just look with your eyes.
C)Scratch the unknown mineral with another rock and see if it streaks it.
D)Drag the unknown mineral across a porcelain plate and look at the color of the
powder

Ndhdheuebeugeyygeudb idb uf

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the

The direction a chemical reaction occurs is represented by an arrow