Question: How do you break a dogbane stalk open in order to access the core wood fiber?
Option 0: Lay the dogbane stalk out on a flat surface. Press your thumb into it to flatten it longitudinally. This will cause the stalk to break in half lengthwise.
Option 1: Lay the dogbane stalk out on a flat surface. Press your knee into it to flatten it longitudinally. This will cause the stalk to break in half lengthwise.
Answer: 0