Question

i. fire ecology: a study of forest fires
ii. factors contributing to forest fires
iii. environmental risks of forest fires
iv. methods of controlling forest fires
v. conclusion

fire ecology: a study of forest fires
which sentence from the passage best supports the idea that forest fires are both helpful and harmful?

a. in dry conifer forests, a certain occurrence of forest fires are essential to maintaining a balance in the composition of plant and animal life.
b. while forest fires lead to the destruction of the environment, they are also essential as they clear the path for the growth of several plants and microorganisms that would otherwise become extinct.
c. forest managers are provided with the necessary equipment to control forest fires and are being trained to implement restoration methods to minimize damage to a forest after a fire.
d. as a result, when forest fires did occur, the high levels of fuel caused the fire to spread to such an extent that it was completely unmanageable, causing severe forest degradation.

Explanation:

Analyze the prompt requirements

The question asks us to identify which sentence from the passage best supports the idea that forest fires are both helpful and harmful. To satisfy this, the correct sentence must contain textual evidence addressing both sides of this dual perspective: the destructive (harmful) aspect and the ecological benefit (helpful) aspect.

Evaluate Option A

Using the Historical Evidence knowledge point

• Text: "In dry conifer forests, a certain occurrence of forest fires are essential to maintaining a balance in the composition of plant and animal life."
• Analysis: This option only discusses the beneficial ("essential to maintaining a balance") aspect of forest fires. It does not mention any harmful or destructive effects.

Evaluate Option B

• Text: "While forest fires lead to the destruction of the environment, they are also essential as they clear the path for the growth of several plants and microorganisms that would otherwise become extinct."
• Analysis: This sentence explicitly addresses both sides. The phrase "lead to the destruction of the environment" represents the harmful aspect, while "essential as they clear the path for the growth of several plants and microorganisms..." represents the helpful aspect.

Evaluate Option C

• Text: "Forest managers are provided with the necessary equipment to control forest fires and are being trained to implement restoration methods to minimize damage to a forest after a fire."
• Analysis: This sentence discusses management and restoration methods. It does not directly show how the fires themselves are naturally helpful to the ecosystem, only how humans try to minimize their damage.

Evaluate Option D

• Text: "As a result, when forest fires did occur, the high levels of fuel caused the fire to spread to such an extent that it was completely unmanageable, causing severe forest degradation."
• Analysis: This option focuses entirely on the negative, runaway consequences of fires ("completely unmanageable, causing severe forest degradation"). It contains no mention of any helpful aspects.

Answer:

• (A) In dry conifer forests, a certain occurrence of forest fires are essential to maintaining a balance in the composition of plant and animal life.
• (B) While forest fires lead to the destruction of the environment, they are also essential as they clear the path for the growth of several plants and microorganisms that would otherwise become extinct. (Correct answer)
• (C) Forest managers are provided with the necessary equipment to control forest fires and are being trained to implement restoration methods to minimize damage to a forest after a fire.
• (D) As a result, when forest fires did occur, the high levels of fuel caused the fire to spread to such an extent that it was completely unmanageable, causing severe forest degradation.