You can use natural thermal energy from the earth (cover the food and bury it)
from areas of thermalo activity (volcanoes and gysers ect) but that's not really practical for everyone!
Using a fire
fire is important because without fire how would you cook food
You can cook an egg without using oil by boiling it in water or by baking it in the oven.
Using fire of course.
they cook in fire
use the suns energy
pour hot water
You can cook fish and sea food using lemon or lime juice. Just let it marinade in the juice for about 30mins and the citric acid present will 'cook' the food - delicious... This method is called Cevich and is a traditional Peruvian way of preparing food.
Yes, you can cook rice without a pressure cooker by using a pot on the stove or a rice cooker.
Well it help them survive because without it they would freeze to death and also without fire they would not be able to cook any of there food
you don't cook the cookie ON the fire place.
Yes fire it is a cooking phrase often used on hell's kitchen. It means to heat it or cook it by using a stove or oven.