Question 4 Take three test-tubes. Fill each of them 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 CO2?

Question 4 Take three test-tubes. Fill each of them with water. Label

1.	Question 4 Take three test-tubes. Fill each of them 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 CO2?
Answer» Question 4 Take three test-tubes. Fill each of them 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 $C O_{2}$ ?