Which fuel will ignite more readily?

Newspaper ignites more readily compared to the other fuel options due to its lightweight composition and the presence of printed ink, which can catch fire easily. Its thin sheets allow for rapid heat transfer, facilitating ignition when exposed to a flame. The fibrous structure of newspaper enables it to ignite quickly, making it an ideal fire starter.

In contrast, logs, kindling, and lumber typically have higher densities and moisture content, which can hinder their ability to ignite quickly. Logs are often larger and denser, requiring more heat and time to catch fire. Kindling, while it can ignite more easily than logs, is usually not as effective as newspaper for immediate ignition due to its size and mass. Lumber can vary in its moisture content and treatment, potentially making it less ready to ignite than newspaper as well. Thus, the rapid ignition of newspaper clearly positions it as the fuel that will ignite more readily.