Question

draw a labelled diagram of an experiment to prove that the air you breathe out contains carbon dioxide​

Answer 1

Answer:

Limewater can be used to detect carbon dioxide. If carbon dioxide is bubbled through limewater then it turns from clear to cloudy/milky in colour. This is why limewater used in a simple respirometer can show that more carbon dioxide is present in exhaled air compared to inhaled air.

Answer 2

king kingWhy did the author visit the shop so infrequently?

2. What did the dog do to lead the farmer to the hidden gold?

3. How did Gopal get inside the palace to see the king after he had bou