A) Creating a makeshift sauna.
B) Heating water without metal pots.
C) Cooking food directly over a fire.
D) Smoking food for preservation.

A) Any stones found near the water source.
B) Dense, non-porous igneous rocks.
C) Lightweight sedimentary rocks.
D) Rocks with visible cracks.

A) They sink to the bottom of the pit.
B) They make the water taste bad.
C) They can explode when heated.
D) They don't retain heat well.

A) Cleaning them thoroughly.
B) Dousing them in water.
C) Heating them in a small fire.
D) Burying them in the ground.

A) Just before they start to smoke.
B) Slightly hotter than the water.
C) Extremely hot, glowing embers.
D) Warm to the touch.

A) Throwing them into the pit from a distance.
B) Wearing thick gloves.
C) Using tongs or a sturdy stick.
D) Dipping them in water before moving them.

A) Gravel.
B) Sand.
C) Grass.
D) Clay.

A) To add minerals to the water.
B) To insulate the pit and keep the water hot longer.
C) To prevent water from seeping into the ground.
D) To protect the rocks from breaking.

A) Directly in the boiling pit before adding water.
B) Over a campfire.
C) In a separate fire pit next to the boiling pit.
D) In an oven.

A) Woven plant fibers.
B) Plastic bags.
C) Paper towels.
D) Metal mesh.

A) It varies depending on stone size and water volume.
B) Almost instantly.
C) Exactly 5 minutes.
D) About 1 hour.

A) Visible steam and bubbles.
B) The water turns a different color.
C) The stones start to glow brighter.
D) The pit begins to smell like smoke.

A) Based on how many people you are feeding.
B) By the type of food you are cooking.
C) Based on the volume of water you need to boil.
D) By the size of the fire pit.

A) The water becoming poisonous.
B) Steam burns.
C) The pit collapsing.
D) Food poisoning from overcooked food.

A) The fire wasn't hot enough.
B) The stones are about to explode.
C) The water is contaminated.
D) It's normal, indicating rapid heat transfer.

A) They are too difficult to move.
B) They are often porous and waterlogged.
C) They are considered sacred in some cultures.
D) They are always the wrong type of rock.

A) Preservation of the water.
B) Increased boiling temperature.
C) Flavor to the food.
D) Neutralization of any toxins in the water.

A) Cut it into small pieces.
B) Season it heavily.
C) Leave it whole.
D) Wrap it in leaves.

A) They become more efficient at retaining heat.
B) They become smoother and easier to handle.
C) They will attract animals to the area.
D) They can weaken and eventually crumble.

A) To prevent carbon monoxide poisoning.
B) To keep the stones hot longer.
C) To make the fire burn brighter.
D) To allow the smoke to escape.

A) Gathering stones from already disturbed areas.
B) Taking all the stones from one location.
C) Quarrying stones from a protected area.
D) Breaking large rocks into smaller pieces.

A) Immediately quench them in water.
B) Let them cool completely before handling.
C) Bury them near the pit.
D) Leave them in the fire to burn out.

A) Bread.
B) Soups and stews.
C) Roasted meats.
D) Fried foods.

A) Building shelters.
B) Starting fires.
C) Making tools.
D) Sterilizing water.

A) It has layers or visible cracks.
B) It's perfectly round.
C) It's a dark color.
D) It feels heavy.

A) Any wood that is dry.
B) Softwoods.
C) Green wood.
D) Hardwoods.

A) A metal container.
B) A water source.
C) A fire pit.
D) Suitable stones.

A) Dessert regions.
B) Areas with abundant clay.
C) Volcanic regions.
D) Areas where pottery was unavailable.

A) Using very large stones.
B) Rapidly adding stones to the water.
C) Boiling large amounts of water at once.
D) Maintaining a consistent and high stone temperature.

A) Pour water on the remaining stones.
B) Try to pick up the pieces.
C) Continue using the pit as normal.
D) Move away from the fire immediately.