Question

Conclusion of activity 6.4 in 10 science book

Answer 1

Explanation:

In this activity we have to take some freshly prepared lime water in a test tube and blow Air through this .Now we have to note the time how long it takes to turn milky .now you can use a syringe to pass air through some fresh lime water. Note the time taken for that lime water to turn milky . This will show that we expel out carbon dioxide during breathing