What do we still need to know in order to determine why the two rock formations have such similar minerals? Choose all that apply.(Hint 2 answers are right) 1) We need to know which rock formation formed first.

2) We need to know which rock formation formed together.

3) We need to know how minerals from one rock became part of the other rock.

4) We need to know how minerals from one rock are not at all the same as the other rock.

depends on what you mean by "group." for order, it would be coleoptera (beetles). for class, it would be insecta (insects). for phylum, it would be the arthropoda (animals with jointed exoskeletons).

explanation:

15.3 cos 65 degrees trig

the moon affects the earth gravitation ally, causing certain motions of that body and also producing tides in its ocean and atmosphere. the tidal wave in our atmosphere is, however, far too minute to be an effective cause in any known meteorological phenomenon.

explanation:

the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it