I need help on some of these questions:

Question

Identify the independant clause in the sentence:

1.Scientists have found traces of an ancient forest that once grew on an empty lot in New Jersey when the region had a tropical climate.
A.on an empty lot in New Jersey
B.Scientists have found traces of an ancient forest
C.that once grew on an empty lot in New Jersey
D.When the region had a tropical climate

I think it's B

2.The forest that they are uncovering once had flowers that fell during a fire and were cooked until they became charcoal.
A.The forest once held flowers
B.that they are uncovering
C.that fell during a fire
D.until they became charcoal

I think it's A

Identify the subordinate clause in the sentence:

1.Some flowers fell when the forest burned and became preserved under layers of ash.
A.Some flowers fell
B.when the forest burned
C.and became preserved
D.under layers of ash

A...?

2.As the layers of ash slowly compressed, partially burned flowers changed into fossils.
A.burned flowers changed into fossils
B.partially burned flowers
C.changed into fossils
D.As the layers of ash slowly compressed

D?

Thanks
-MC

Answer 1

The first two and the fourth are correct.

Check this site on subordinate clauses.

http://isu.indstate.edu/writing/handouts/setiii/prints/SETIII2P.html

Answer 2

Is the third one B?

Answer 3

Right.

Answer 4

Thanks!
-MC

Answer 5

1.B 2.A 3.A 4.D