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Harmful Effects of Plastic and Biodegradable Plastic, Garbage in, Garbage Out, Class 6 Science Video Lecture | Basic Science for Primary 5

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FAQs on Harmful Effects of Plastic and Biodegradable Plastic, Garbage in, Garbage Out, Class 6 Science Video Lecture - Basic Science for Primary 5

1. What are the harmful effects of plastic?
Ans. Plastic has several harmful effects on the environment. It is non-biodegradable, which means it does not break down easily and can persist in the environment for hundreds of years. This leads to the accumulation of plastic waste in landfills, oceans, and other natural habitats. Plastic waste also poses a threat to wildlife, as animals can get entangled in it or mistake it for food, leading to injury or death. Additionally, the production and disposal of plastic contribute to air and water pollution, and the release of toxic chemicals during these processes can harm human health.
2. How does biodegradable plastic differ from normal plastic?
Ans. Biodegradable plastic is designed to break down more easily compared to normal plastic. It is made from organic materials, such as cornstarch or vegetable oil, which can be broken down by microorganisms in the environment. This allows biodegradable plastic to degrade into harmless substances like water, carbon dioxide, and biomass over a relatively shorter period of time. In contrast, normal plastic is made from petroleum-based materials that do not readily decompose and can persist in the environment for hundreds of years.
3. What are the advantages of using biodegradable plastic?
Ans. The use of biodegradable plastic offers several advantages. Firstly, it helps reduce the accumulation of plastic waste in landfills and natural habitats, as it can break down into harmless substances. Biodegradable plastic also has the potential to reduce carbon emissions, as it is often derived from renewable resources. Additionally, using biodegradable plastic can help minimize the release of toxic chemicals into the environment during production and disposal, thereby reducing the negative impact on human health and ecosystems.
4. Are there any drawbacks or limitations of biodegradable plastic?
Ans. While biodegradable plastic has its advantages, it also has some drawbacks and limitations. One limitation is that the degradation process of biodegradable plastic requires specific conditions, such as exposure to sunlight and a certain temperature range, which may not be readily available in all environments. If biodegradable plastic ends up in a landfill or the ocean, where these conditions are not met, it may not degrade as intended. Furthermore, the production of biodegradable plastic still requires energy and resources, and its widespread use may compete with food production if it is made from agricultural crops.
5. How can individuals contribute to reducing plastic waste?
Ans. Individuals can play a significant role in reducing plastic waste. Some ways to contribute include: - Reduce: Minimize the use of single-use plastics, such as plastic bags and straws, by opting for reusable alternatives. - Reuse: Use durable and reusable containers for storing food and beverages instead of disposable plastic ones. - Recycle: Separate and recycle plastic waste according to local recycling guidelines to ensure proper disposal and potential reuse. - Educate: Spread awareness about the harmful effects of plastic and promote environmentally-friendly alternatives among friends, family, and the community. - Support: Choose products and packaging made from biodegradable or eco-friendly materials whenever possible, encouraging businesses to adopt sustainable practices.
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