Question

the oak tree family
there are fifty kinds of oak trees native to america, and they are almost evenly divided between the two sides of the rocky mountains. it is not easy to recognize the different kinds of oak trees. however, any tree that bears acorns can be recognized as an oak tree.
the white oak group is composed of trees that have light - colored bark, bear a crop every year, and do not have acorns through the winter. unlike other oak trees, the leaves of the white oak are rounded and do not have acorns through the winter. unlike other oak trees, the leaves of the white oak are rounded and do not end in sharp points.
all of the oaks whose leaves have pointed, spiny tips belong to the black oak group. the bark of these trees is usually dark in color. the acorns of the black oak tree require two years of growth. for this reason, there are half - grown acorns on the tree all winter.
6
what can the reader infer from the passage?
a. all white oaks have dark - colored barks.
b. only oak trees bear fruit annually.
c. all black oaks have light - colored barks.
d. only oak trees bear acorns.

Explanation:

The passage states that any tree that bears acorns can be recognized as an oak tree. This implies that only oak trees bear acorns. There is no information in the passage to support options A, B, or C. Option A - white oaks have light - colored bark according to the passage, not dark - colored. Option B - the passage doesn't mention that only oak trees bear fruit annually. Option C - black oaks have dark - colored bark, not light - colored.

Answer:

D. Only oak trees bear acorns.