state gov UP Police Computer Operator Grade A Mock Test 2023 General Knowledge Ecology and Environment Ecology and Functions of an ecosystem
Which of the following is the best definition of 'biodegradable' ?
1
Capable of depolymerization into carbon dioxide and water by the action of enzymes
2
A suitable and sufficient nutrient source for growth to saprophytic organisms
3
Easily digested into smaller molecules by action of bacteria or bacterial enzymes
4
Capable of being broken down into harmless products by the action of microbes