Question

b. the student’s claim is incorrect, because triclopyr application is a chemical control method.
c. the student’s claim is incorrect, because burning, scarification, and digging up are mechanical control methods.
d. the student’s claim is correct, because brush cutting and scarification are mechanical control methods.

part b
choose the statement that best supports the answer to part a.
a. brush cutting targets mature scotch broom plants.
b. pod weevils target scotch broom and are established in the state.
c. digging up individual scotch broom plants can cause soil disturbance.
d. herbicides are the most effective method for removing scotch broom.

Explanation:

Part B

Assuming Part A's answer is option C (student’s claim incorrect as burning, scarification, digging are mechanical), we need a statement supporting this. Option C says digging up causes soil disturbance, which relates to mechanical methods (like digging) having impacts, supporting the idea about mechanical control methods.

Answer:

C. Digging up individual Scotch broom plants can cause soil disturbance.