Answer: First you gather some material. Next you make a circle of would planks. (depending on how big or small you want the fire). Then you have to either:
1. if its day time and you have glasses use those reflecting the heat off of the lens onto the wood.
2. use rocks, by scraping the, together in a certain position.
3. use a lighter if you have one
But when you go places you should always make sure you have the right things with you. Because you never know what might happen. Like in the move Blue Lagoon. Emma kept all of her things in her purse, well that she might of needed and in a zip-lock baggy so then they would stay safe.
Hope this helps bye. Have a great day and please mark brainliest.