Answer:
n stage 13, all four limb buds are present. In stage 13, the upper limb buds resemble flippers. In stage 23, the upper limb shows well-formed arm, elbow, wrist, and fingers. In stage 23, the lower limb shows well-formed toes, feet, and knees.
Explanation:
Building walls and houses, fire pits, construction materials, decoration etc...
Answer: D I’m pretty sure
Explanation:
Yes, because it is found and created naturally
