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                    href="https://pa.khanacademy.org/science/punjab-class-8th-science/x1152b7b5d5ff885b:carbon-and-its-compounds/x1152b7b5d5ff885b:major-source-of-petroleum-fuel-and-other-products/e/fuels" />
        
        <lastmod>2026-04-08T01:15:04.085520103Z</lastmod>
        
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            <DataObject type="document" id="fuels">
            <Attribute name="title">Fuels</Attribute>
            <Attribute name="description">Let&#39;s solve some problems to better understand various types of fuels.</Attribute>
            <Attribute name="author">Aakash Bagga</Attribute>
            <Attribute name="type">exercise</Attribute>
            
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    </url>
    
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