Question
Why are some substances biodegradable and some non-biodegradable?
✓
Answer
Substances which can be acted upon by micro-organism (decomposer) are called biodegradable. For example- vegetable wastes, paper, cotton etc.On the other hand, materials which are not acted upon by decomposers are called non biodegradable. For example- plastic, glass, polyethene etc.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A doctor has prescribed a corrective lens of power +1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging?
Why do the divers carry oxygen for artificial respiration?
In the circuit shown below, calculate the net resistance of the circuit.
Nitrogen (atomic number 7) and phosphorus (atomic number 15) belong to group 15 of the Periodic Table. Write the electronic configuration of these two elements. Which of these will be more electronegative? Why?
a. Figure shows a concave mirror with its pole at P, focus F and centre of curvature C. Draw a ray diagram to
show the formation of image of an object AB.
b. State three characteristics of the image formed.
show the formation of image of an object AB.
b. State three characteristics of the image formed.
What will be the consequence of the absence of decomposers in the ecosystem?
What is phloem tissue? Phloem contains two types of cells joined side by side. Name these two types of cells. State whether these cells are living or dead.
What current is taken by a 3kW electric geyser working on 240V mains?
Name the process in which wastes are burned at high temperature.
A fuse wire consists of an alloy of lead and tin. Why?