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Biofuels, derived from organic materials or waste, are a renewable energy source that can help lower carbon dioxide emissions. They are widely used as renewable energy today. In transportation, they are often mixed with conventional fuels like gasoline and diesel.

1. Growing chickpea in areas prone to bacterial blight can be managed by using disease-free seeds and cultivating resistant varieties.
2. Paecilomyces is a widespread filamentous fungus found in soil, decaying vegetation, and food, and some species can be isolated from insects.
3. The teleomorphic forms of Paecilomyces belong to the Clavicipitaceae and Talaromyces genera. While often a contaminant, it can occasionally cause infections in humans and animals.
4. Pongamia pinnata is a nitrogen-fixing tree that produces seeds with 30-40% oil content. It is traditionally used as a shade tree but is now recognized as a potential source for biodiesel production.

Correct answer: Pongamia pinnata is a nitrogen-fixing tree that produces seeds with 30-40% oil content. It is traditionally used as a shade tree but is now recognized as a potential source for biodiesel production.

Solution

Pongamia pinnata is a nitrogen-fixing tree that produces oil-rich seeds, making it a viable source for bio-diesel production, aligning with the context of biofuels in the question.

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