IELTS Reading Practice Test 01 - The Secrets of Nature

PASSAGE 1

IELTS Reading Practice Test 01 - The Secrets of Nature

READING PASSAGE 1: BACTERIAL BATTERIES

Scientists have discovered remarkable microbial electro-synthesis systems capable of generating sustainable electric current directly from organic sediment. These biological mechanisms exploit extracellular electron transfer pathways established by specialized bacteria such as Geobacter sulfurreducens.

Unlike conventional electrochemical cells reliant on rare-earth mineral extraction and hazardous heavy metals, bio-electrochemical systems exhibit an extraordinary ecological profile, yielding virtually zero toxic electronic waste upon lifecycle termination.

Passage 1

Read the text and answer the questions below.

1 What generates electrical current in bacterial batteries?

2 According to the passage, an environmental advantage of bio-batteries is:

Conventional electrochemical cells rely heavily on rare-earth mineral extraction.

Bacterial batteries require direct sunlight to maintain electron flow.

Bio-electrochemical systems generate electric current directly from organic .

6 Which methodology is used to accelerate canopy density in urban micro-forests?

Urban ambient temperatures can drop by up to degrees Celsius during summer heatwaves.

Contemporary deep learning networks possess genuine intentionality.