Multiple Choice
The transition from sugar pine to white fir forests in California was caused mainly by:
A) volcanic eruptions.
B) frequent earthquakes.
C) logging.
D) reduced numbers of forest fires.
E) reduced numbers of settlers.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q12: In response to Gypsy moth attack, defoliated
Q13: An example of secondary succession is:<br>A)lichens colonizing
Q14: Energy is recycled in an ecosystem.
Q15: Nonprairie species are prevented by _ from
Q16: Which of the following statements about mycorrhizal
Q18: According to the cooperative model for an
Q19: An example of a parasitoid is a
Q20: Higher plants are usually the first to
Q21: _ is a fuel formed from wetland
Q22: Which of the following is not a