Yes. It did for thousands of years before butane was introduced.
no
no because without tax the country can survive
Yes because they survive on plant, not human.
no no seeds no food
FOOD
no
No
yes
No, a plant could not grow without oxygen.
You could measure the weight of the butane canister before and after use to calculate how much butane has been burnt. Another method is to monitor the flame height or temperature to estimate the consumption rate. Alternatively, you could use a specialized butane gas meter to directly measure the amount of butane burned.
sovereignty
no