Activity - Co2 is released during exhalation — task. Science CBSE Homework Assignments, Class 7.

Observe figure carefully and answer the following questions.

1. Which process is being tested in the activity?

2. What is the result of the activity? Give reasons.

Test tube ‘B’ lime water turns milky, while tube ‘A’ remains unaltered. Exhaled carbondioxide interacts with lime water in test tube ‘B’ to make it milky.
Test tube ‘B’ lime water turns milky, while tube ‘A & B’ remains unaltered. Exhaled carbondioxide interacts with lime water in test tube ‘A’ to make it milky.
Test tube ‘A’ lime water turns milky, while tube ‘A’ remains unaltered. Exhaled carbondioxide interacts with lime water in test tube ‘A’ to make it milky.

Did you find an error?

4. Activity - Co2 is released during exhalation