#20Listening: Fill in the BlanksAcademic,CoreMedium
CO2 level
Official Question Material
Prep: Varies
Official Audio Prompt
For millions of years, carbon dioxide levels in the [blank] have been regulated, in part, by a natural [blank] between plants and microbes - tiny organisms in the soil. Plants absorb CO2 from the air and [blank] it into sugars and other carbon-based substances. While a [blank] of these carbon products remain in the plant, some transfer from the roots to [blank] and soil microbes, which store the carbon in the soil.
Sample Answer & Audio Transcript
For millions of years, carbon dioxide levels in the atmosphere have been regulated, in part, by a natural partnership between plants and microbes - tiny organisms in the soil. Plants absorb CO2 from the air and transform it into sugars and other carbon-based substances. While a proportion of these carbon products remain in the plant, some transfer from the roots to fungi and soil microbes, which store the carbon in the soil.
Instant AI Speech & Writing Feedback
Practice This Question with Real-Time AI Scoring
Record your voice or submit your writing to get official Pearson-aligned scores (10-90) across Oral Fluency, Pronunciation, Grammar, and Content in 1.2 seconds.
Pearson Official Scoring Guide for Listening: Fill in the Blanks
Scored Enabling Skills
- Communicative Skills & Enabling Skills
Timing Standard
Response Window: Official Pearson Exam Standard
💡 Examiner Strategy & Pro Tip:Maintain focus on accuracy, timing, and Pearson automated scoring rubrics.