How modern smartphones work: Reading answers

The passage opens

Answers 15–20

1. 15

   Paragraph I

   G: The design and materials Matching headings

   Paragraph I matches G, “The design and materials,” because it describes the phone’s outer shell and the materials used to make it.

   “Most use materials like aluminum, glass, or plastic to create a stylish yet strong outer shell.”

2. 16

   Paragraph II

   A: The role of the processor Matching headings

   Paragraph II matches A, “The role of the processor,” because it explains how the processor controls and supports smartphone functions.

   “the processor is the brain that keeps the smartphone running efficiently.”

3. 17

   Paragraph III

   B: How smartphones connect us Matching headings

   Paragraph III matches B, “How smartphones connect us,” because it describes mobile networks, Wi-Fi, Bluetooth, and GPS.

   “Smartphones allow people to stay connected wherever they go.”

4. 18

   Paragraph IV

   E: Touchscreen technology Matching headings

   Paragraph IV matches E, “Touchscreen technology,” because it explains how the touchscreen senses gestures and enables users to interact with the phone.

   “The touchscreen is one of the most important parts of a smartphone.”

5. 19

   Paragraph V

   D: Cameras and image capture Matching headings

   Paragraph V matches D, “Cameras and image capture,” because it describes camera lenses, sensors, image processing, and video recording.

   “The camera uses sensors to capture light and convert it into digital images.”

6. 20

   Paragraph VI

   F: Protecting your personal data Matching headings

   Paragraph VI matches F, “Protecting your personal data,” because it describes security features that safeguard users’ information.

   “To protect this data, smartphones use features like fingerprint scanners, facial recognition, and PIN codes.”

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