Question

"Building a campfire with sticks and logs is a simple example of using a biofuel."


How does the sentence contribute MOST to the meaning of the paragraph?


It provides a basis to show how biofuel technology has changed over time.


It connects the idea of biofuels to an image that may be familiar to readers.


It illustrates the idea that biofuels can be used as an alternative to fossil fuels.


It contrasts biofuel from the forest to forms of fuel grown on farms or plantations.

Answer 1

It connects the idea of biofuels to an image that may be familiar to readers.

Explanation: the sentence gives a concrete, relatable example (a campfire) to help readers understand what "biofuel" means, rather than discussing historical change, alternatives to fossil fuels, or contrasting sources.