SELECT * FROM question_mgmt as q WHERE id=3898 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=9 AND subId=16 AND chapterId=266 and ex_no='4' AND status=1 ORDER BY CAST(question_no AS UNSIGNED) CBSE Free NCERT Solution of 10th science Our Environment which of the following groups contain only biodegr

Question:

Which of the following groups contain only biodegradable items?

(a) Grass, flowers and leather
(b) Grass, wood and plastic
(c) Fruit-peels, cake and lime-juice
(d) Cake, wood and grass

Answer:

All options contains biodegradable substances which can decompose easily except the grass, wood and plastic because plastic is a non- biodegradable substance which cannot be degraded and get accumulated in the environment which is the main cause of the pollution.


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