Which of the following group contain only biodegradable ?

Question

Accepted Answer

Option 3, which includes "Fruits-peels, Cake and Lime juice," is the correct answer because all the items listed are biodegradable. Biodegradable materials are those that can be broken down by natural processes, such as the action of microorganisms, into simpler substances that can be absorbed by the environment without causing harm.

1. **Fruits-peels**: These are organic materials that decompose naturally. Microorganisms such as bacteria and fungi can easily break down fruit peels, returning nutrients to the soil.

2. **Cake**: Being made from organic ingredients like flour, sugar, eggs, and butter, cake is also biodegradable. It can be decomposed by microorganisms, contributing to the nutrient cycle.

3. **Lime juice**: This is a natural liquid extracted from limes, which is organic and can be broken down by microorganisms. It is biodegradable and poses no harm to the environment when decomposed.

Now, let's explain why the other options are incorrect:

1. **Option 1: Grass, Flowers and Leather**
   - Grass and flowers are biodegradable, but leather is not entirely biodegradable. Leather is treated animal hide, and the tanning process often involves chemicals that make it resistant to decomposition.

2. **Option 2: Grass, Wood and Glass**
   - Grass and wood are biodegradable, but glass is not. Glass is made from inorganic materials and does not decompose naturally. It can persist in the environment for thousands of years.

3. **Option 4: Cake, Wood and Plastic**
   - Cake and wood are biodegradable, but plastic is not. Plastic is a synthetic material that does not break down easily and can remain in the environment for a very long time, causing pollution.

In conclusion, Option 3 is the only group that contains items that are all biodegradable, making it the correct choice.