Question

Which sentence from the text most effectively develops and refines this idea?

“A central idea in ‘All About Charcoal’ is that the modern production of charcoal is much more efficient now that it used to be.”

a. People today get more charcoal from the wood they use and are also able to extract other valuable byproducts from the wood.

b. Charcoal intended for cooking is most often combined with other flammable materials and turned into small rocks called briquettes.

c. Many people use charcoal for water filtration because the charcoal will hold onto impurities from the water.

d. Today, charcoal is no longer common as an industrial fuel for melting metal or other such purposes.

Answer 1

Answer:

a. People today get more charcoal from the wood they use and are also able to extract other valuable byproducts from the wood.

Step-by-step explanation:

The sentence that most effectively develops and refines the idea that the modern production of charcoal is more efficient is "People today get more charcoal from the wood they use and are also able to extract other valuable byproducts from the wood." This sentence explains that modern methods of producing charcoal allow for more efficient use of wood resources, resulting in greater yields of charcoal and other valuable byproducts. It effectively builds upon the central idea of the text and provides a specific example to support it. Option b discusses the process of turning charcoal into briquettes but does not elaborate on the central idea. Option c mentions an alternative use for charcoal, but it is not directly related to the central idea. Option d is a statement about the decline in the use of charcoal for industrial purposes and does not develop the idea that modern production methods are more efficient.

Answer 2

Answer: a. People today get more charcoal from the wood they use and are also able to extract other valuable byproducts from the wood.

Explanation: This sentence provides a specific example of how the production of charcoal has become more efficient. It explains that people today are able to get more charcoal from the same amount of wood than they used to be able to, and they can also extract other valuable byproducts from the wood. This information effectively develops and refines the idea that the modern production of charcoal is more efficient than it used to be.