Question

One of the following is non-biodegradable. This one is : *
leather belt
thin gold foil
cow dung cake
thick cardboard sheet​

Answer 1

Answer:

Leather belt

HOPE IT HELPS

Answer 2

Answer:

(a) Leather Belt

Explanation:

Biodegradable Substances

Biodegradable means that a substance can be easily decomposed by naturally occurring agents such as oxygen, water, ultraviolet rays, microbes, acid rains, etc.

For instance, when a banana peel or any other chopped vegetables and other food items is left in the open, several harmful micro-organisms, including bacteria, fungi or small insects act upon it in a relatively short period of time. This is because, the natural elements like moisture, oxygen and heat help in the decomposition by breaking the complex organic structures into simpler units. The decomposed material will eventually mix and return to the soil.

Non-biodegradable Substances

Non-biodegradable substances do not break down or dissolve for many years. Because of that, they can be recycled and reused. So, instead of throwing wastes in the garbage, it can be dumped in a proper recycling place making it useful for other purposes.

Take the papers and thin boards as examples. Although they shrink, they do not dissolve or vanish for a very long time. They remain as debris in unattended holes, water bodies, etc, which has the ability to harm our environment. The best way to prevent that is to recycle the paper and use it again.

So, from the above question Leather Belt is non biodegradable and the other three thin gold foil, cow dung cake and thick cardboard sheet are biodegradable substances.

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