Test: Conventional Sources of Energy - Class 10 MCQ

Ammonia, often produced as a by-product of coal combustion, is primarily utilized in the production of fertilizers. This use is significant in agriculture, as ammonia is a key component in enhancing soil fertility and crop yields, demonstrating the interconnectedness of energy production and food security.

Lignite, often referred to as brown coal, has lower carbon content and is primarily used for generating electricity due to its availability and cost-effectiveness in power generation. This type of coal is significant in regions where higher-grade coal types are less accessible.

The Gondwana coalfields account for approximately 98% of India’s total coal reserves. Located primarily in river valleys, these coalfields play a crucial role in meeting the country’s energy needs and supporting various industries.

Oil spills have devastating consequences for marine environments, leading to pollution that can kill large numbers of marine animals and disrupt ecosystems. Cleanup efforts are costly and often insufficient to completely restore affected areas.

While hydel power projects offer renewable energy and benefits such as flood control, the initial investment for constructing dams and related infrastructure is significantly high, which can be a barrier to development, especially in less economically developed regions.

One of the main safety concerns with natural gas is the risk of leaks, which can be extremely dangerous as they may lead to explosions and fires. Proper infrastructure and safety measures are critical to mitigate these risks in both residential and industrial settings.

The extraction and combustion of petroleum release greenhouse gases, which significantly contribute to global warming. This environmental concern highlights the challenges of relying on fossil fuels and the need for more sustainable energy sources.

Anthracite coal is known for its high carbon content and burns slowly, producing minimal smoke, which makes it an ideal smokeless fuel. This quality provides a high heating value, making it suitable for domestic use and metallurgical processes, unlike other types of coal that may not offer the same efficiency or cleanliness in combustion.

Oil refineries are essential in the energy sector as they convert crude oil into various usable products, such as gasoline, diesel, and lubricants. This transformation is critical for meeting the energy demands of transportation and industry.

The Bhakra Nangal Dam is noted for being the second highest dam in India, serving multiple purposes, including irrigation and power generation. Its significant reservoir capacity enhances water management for agricultural and energy needs in the region.

Natural gas primarily consists of methane, which produces fewer carbon emissions when burned compared to oil and coal. This characteristic makes it a more environmentally friendly option in the transition toward cleaner energy sources.

The burning of coal results in substantial environmental pollution, contributing to issues such as air quality degradation and health problems. This environmental impact is a significant concern, especially as coal is a major energy source in India.

Hydropower is a renewable energy source, meaning it can continuously generate electricity without depleting resources. This characteristic allows for sustainable energy production that can help reduce reliance on fossil fuels and mitigate climate change.

The construction of large dams often results in the displacement of local communities, disrupting their livelihoods and way of life. This social impact raises ethical concerns about the balance between development and community rights.

Petroleum is often called 'liquid gold' because every part of crude oil is utilized in various applications without waste. Its versatility allows it to be refined into numerous products, including fuels and petrochemicals, underscoring its economic importance.

Hydropower generates electricity by utilizing the energy of falling water, which spins turbines connected to generators. This process converts kinetic energy from water into electrical energy, making it a highly efficient and renewable energy source.

Compressed natural gas (CNG) is widely used for domestic cooking and heating due to its cleanliness and efficiency compared to other fossil fuels. Its lower emissions make it a more environmentally friendly option for household energy needs.

The Neyveli lignite field in Tamil Nadu is recognized as the largest lignite deposit in South India. Lignite plays a crucial role in the region's energy generation and is an essential resource for electricity production.

Bituminous coal, often referred to as cooking coal, is primarily used to produce coke and coal gas. These products are essential in various industrial processes, particularly in steel manufacturing, highlighting the importance of bituminous coal in heavy industries.

The refining process transforms crude oil into a wide range of valuable products, such as gasoline, diesel, and petrochemicals. This versatility contributes significantly to the economy by providing essential fuels and materials for various industries.