If you just land in Australia no sign of civilization wat would you do to make a axe or something sharp to cut wood to make houses and such?

This site tells how early people made sharp objects.

http://weber.ucsd.edu/~dkjordan/arch/tools.html

If you find yourself in a situation where you need to make an axe or a sharp tool in an area with no signs of civilization, there are a few steps you can take to craft one. Here's a general guide on how early people made sharp objects:

1. Find appropriate materials: Look for hard and durable rocks or stones such as quartzite, basalt, or flint. These rocks can be shaped into sharp edges.

2. Choose a suitable rock: Once you've found a suitable rock, look for one with a flat surface or a preexisting sharp edge that you can work with.

3. Shape the rock: Using another rock or hard object, carefully strike the chosen rock to chip away flakes and shape it into a desired form. The process is called flintknapping.

4. Create a cutting edge: Continue striking the rock along one edge to create a sharp and symmetrical cutting edge. This requires skill and practice, as it's important to remove flakes smoothly to achieve a sharp edge.

5. Attach the rock to a handle: Depending on the size and weight of the rock, you'll need to find or make a suitable handle. Look for a long, sturdy branch or a piece of wood that you can shape and carve into a handle. Use natural fibers, like vines or animal sinew, to attach the rock securely to the handle.

6. Secure the attachment: Wrap the fibers tightly around the joint between the rock and the handle, making loops or knots to ensure a strong connection. Allow the fibers to dry and tighten further.

7. Sharpen the cutting edge: Once you've attached the rock to the handle, use smaller rocks or sharpening stones to sharpen the cutting edge. Rub the stone against the cutting edge to remove small flakes and refine the edge's sharpness.

Remember, creating a functional tool like an axe requires time, skill, and practice. Early humans relied on trial and error to improve their tool-making techniques. The website provided earlier can give you more in-depth information on the process and techniques used by early people to make sharp objects.