https://whatsapp.com/channel/0029Va81q0TLtOj8Und0ua0l/4081 *Explaination:* `Option D is correct.` `It is an adjective.` `جو جراثیم وغیرہ کے عمل سے خراب یا تحلیل ہو سکے.` > (of a substance or object) capable of being decomposed by bacteria or other living organisms and thereby avoiding pollution. *Examples:* 1) Consumers have forced a shift to more biodegradable products. 2) Biodegradable packaging helps to limit the number of harmful chemicals released into the atmosphere. 3) Biodegradable plastic is the latest thing. 4) Even biodegradable soap is not allowed in the water.