Read the passage below carefully and match each statement from the text (Left) with its co… — JAMB UTME

Read the passage below carefully and match each statement from the text (Left) with its correct structural role in a concise summary (Right).

In the semi-arid northern belts of Ghana, indigenous bamboo species are increasingly being integrated into agroforestry models to combat soil degradation and wind erosion. Unlike deep-rooted hardwood trees, which require years to establish, bamboo species like *Bambusa balcooa* feature dense, shallow rhizome networks that bind topsoil rapidly within a single growing season. Environmental agencies report a forty percent reduction in soil runoff across pilot farms in the Upper East Region following bamboo planting. Furthermore, local agricultural cooperatives harvest mature bamboo culms after three years to fabricate durable bio-fencing and structural props, providing smallholder farmers with an alternative revenue stream during seasonal drought intervals. While some commercial ventures have experimented with converting surplus bamboo biomass into activated charcoal for water filtration, these industrial initiatives remain secondary to the plant's immediate ecological utility as a soil stabilizer and microclimate regulator.

Rapid topsoil binding by bamboo rhizome networks serves as a key mechanism against soil degradation in semi-arid regions.Core Essential Idea
Pilot farms in the Upper East Region achieved a forty percent decrease in soil runoff after introducing bamboo.Supporting Evidence / Illustration
Commercial ventures are utilizing excess bamboo biomass to produce activated charcoal for water filtration.Secondary / Non-essential Detail

Answer

The core essential idea is that bamboo's dense rhizome networks rapidly bind topsoil to combat soil degradation; the report of a 40 percent reduction in soil runoff serves as supporting evidence; and the conversion of surplus bamboo into activated charcoal is a secondary, non-essential detail.

The statement regarding bamboo's rhizome network stabilizing soil represents the core essential idea because the entire passage revolves around bamboo's ecological utility in fighting soil degradation. The forty percent runoff reduction statistic serves as supporting evidence illustrating the main idea's real-world impact. The mention of activated charcoal production is a secondary detail that the text itself notes is peripheral to the primary focus.

Step-by-Step Solution

Analyze the text to identify the author's primary argument and main thesis.

The main focus is how bamboo rapidly binds topsoil to combat soil degradation and erosion in semi-arid zones.

Establishing the core thesis allows separation of essential arguments from peripheral elements.

Distinguish empirical proof and statistical results from the core thesis.

The forty percent reduction in soil runoff in the Upper East Region is a concrete data point supporting the thesis.

Specific statistics serve as supporting evidence and should be categorized as illustrative rather than primary thesis statements.

Identify non-essential or peripheral details that do not drive the central thesis.

Commercial experiments converting bamboo into activated charcoal are explicitly identified by the text as secondary to the main ecological utility.

Summary writing requires filtering out side experiments or peripheral uses that are not central to the main message.

Key Concept

Distinguishing Core Thesis from Supporting Evidence and Peripheral Details

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