Answer:
B. To ask and answer scientific questions
Add 1 tsp. of vinegar to the canister at a time, filling it almost to the top. You need to add as much vinegar to the canister as possible without the vinegar and the baking soda coming into contact when you later snap the lid onto the canister. Depending on the exact canister, this may be around 5 tsp.
The answer to this is 22, confirmed by gradpoint
The correct answer is A. O^2-
The organism could live in the cave, eat the ant, and drink from the lake.
