Question : Non-commercial energy sources are often used for:
Option 1: Industrial production
Option 2: Transportation
Option 3: Cooking and heating
Option 4: Electricity generation
Correct Answer: Cooking and heating
Solution : The correct answer is (C) Cooking and heating
Non-commercial energy sources are often used for cooking and heating purposes, especially in rural and low-income areas where access to commercial energy sources may be limited or unaffordable. These sources include traditional biomass fuels such as firewood, crop residues, and animal dung, which are commonly used in traditional stoves or open fires for cooking and providing warmth. Non-commercial energy sources are also used for small-scale localized electricity generation in some cases. However, it's important to note that non-commercial energy sources may have environmental and health implications due to their inefficient combustion and indoor air pollution.
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