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Anaerobic Bacteria Digest Animal Waste and Produce Biogas (Change − A). the Biogas is Then Burnt as Fuel (Change − B). the Following Statements Pertain to These Changes. Choose the Correct One. - CBSE Class 7 - Science

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Question

Anaerobic bacteria digest animal waste and produce biogas (Change − A).

The biogas is then burnt as fuel (Change − B). The following statements pertain to these changes. Choose the correct one.

  • Process − A is a chemical change.

  • Process − B is a chemical change.

  • Both processes A and B are chemical changes

  • None of these processes is a chemical change

Solution

Both processes A and B are chemical changes.

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APPEARS IN

 NCERT Solution for Science Textbook for Class 7 (2018 to Current)
Chapter 6: Physical and Chemical Changes
Q: 11 | Page no. 66
Solution Anaerobic Bacteria Digest Animal Waste and Produce Biogas (Change − A). the Biogas is Then Burnt as Fuel (Change − B). the Following Statements Pertain to These Changes. Choose the Correct One. Concept: Concept of Chemical Change.
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