Which of the following is not an example of how the 3Rs can be adopted by a city?

1. Recovering heat from combustible waste.
2. Disposing plastic bottles in a landfill.
3. Composting organic waste
4. Offering collection of recyclables from the apartments building once a week.

Flyash from power plants can be used as cement substitutes; with which of the following Rs it is associated?

1. Recycle
2. Reduce
3. Reuse
4. All the above

What do 3Rs stand for?

1. Resource, Recharge, Reset
2. Reborn, Receive, Retrieve
3. Reduce, Reuse, Recycle
4. Rebind, Reason, Realms

Which of the following is not an example of non-biodegradable waste?

1. Glass
2. Vegetable peels
3. Plastic bottles
4. Glass items