Question

Take three test-tubes. Fill 3/4th of each with water. Label them A, B and
C. Keep a snail in test-tube A, a water plant in test-tube B and in C,
keep snail and plant both. Which test-tube would have the highest
concentration of CO ?​

Answer 1

Answer:

test tube C as it has both snail and plant , which both release carbondioxide

plz mark Brainliest