Test: Waste Management-I - Class 10 MCQ

Chlorofluorocarbons (CFCs) are significant contributors to the depletion of the ozone layer. These chemicals, commonly used in refrigerants and aerosol sprays, can harm the ozone layer when released into the atmosphere.

Acid rain causes corrosion and damage to buildings and monuments by reacting with materials like limestone and marble. This deterioration can lead to costly repairs and loss of historical significance, emphasizing the importance of addressing pollution sources.

Following the 3-R system—reduction, reuse, and recycling—significantly reduces environmental impact. This approach conserves resources, minimizes waste, and encourages sustainable practices in consumption and production.

Agricultural waste primarily comes from plant remains and animal waste, generated during planting, harvesting, and processing of agricultural products. Effective management of agricultural waste can lead to better soil health and crop yield.

The textile industry generates hazardous waste, particularly in the form of effluents that can be harmful to aquatic life. This highlights the need for stringent waste management practices in industries to minimize environmental impact.

Vegetable peels are an example of biodegradable waste, as they can decompose naturally. Biodegradable materials break down over time, whereas non-biodegradable materials can persist in the environment for extended periods, causing pollution.

Carbon dioxide is one of the primary gases responsible for the greenhouse effect. It traps heat in the atmosphere, contributing to global warming. Understanding these gases and their sources is essential for developing strategies to mitigate climate change.

The construction industry typically produces industrial waste, including materials like bricks, plastics, and insulation. Effective management of this waste is essential to minimize environmental impact and promote sustainability in construction practices.

Biomedical waste includes materials like needles and syringes generated during medical treatment and research. Proper management of biomedical waste is essential to prevent health risks and environmental contamination.

Asbestos is classified as toxic waste due to its hazardous nature, which poses serious health risks to humans and animals. Toxic wastes typically originate from industrial processes and can lead to significant environmental and health problems if not managed correctly.

Soil pollution leads to reduced mineralization and decomposition processes, which in turn negatively impacts soil fertility. Maintaining soil health is vital for sustainable agriculture and environmental health.

The depletion of the ozone layer increases exposure to harmful ultraviolet (UV) rays, which can lead to various health issues, including skin cancer and cataracts. Protecting the ozone layer is crucial for safeguarding human health and maintaining ecological balance.

Domestic waste is generated from household activities, including items like polythene bags, batteries, and expired medicines. Proper disposal and management of domestic waste are crucial to prevent environmental degradation and health risks.

The three main types of waste are solid, liquid, and gaseous. Solid waste includes items like garbage, liquid waste encompasses sewage and oil spills, and gaseous waste consists of emissions such as carbon dioxide and sulfur dioxide. Understanding these categories helps in effective waste management strategies.

Acid rain primarily results from pollutants like sulfuric acid and nitrogen oxides combining with water droplets in the atmosphere. This phenomenon can lead to severe environmental damage, including harm to aquatic life and soil degradation.

Global warming causes a rise in sea levels due to the melting of polar ice and thermal expansion of water. This rise poses a risk to coastal communities and ecosystems, making it crucial to address climate change proactively.

Fertilizers and pesticides can contaminate water bodies when they run off from agricultural fields. This contamination can harm aquatic life and disrupt ecosystems, highlighting the need for careful management of agricultural chemicals.

Nuclear waste is generated from nuclear power plants and other facilities that utilize radioactive materials. This type of waste is particularly hazardous due to its potential to cause serious health issues, including cancer, if not managed properly.

Metal cans are an example of non-biodegradable waste, as they can take many years to decompose. Non-biodegradable materials accumulate in the environment, posing significant challenges for waste management and ecological balance.

Improper waste disposal poses significant health risks through water contamination. Sewage and industrial effluents can introduce pathogens and harmful chemicals into water bodies, leading to severe health issues in humans and wildlife.