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Question #N531

The article describes how a new type of technology, called "smart dust," could be used to monitor the environment in ways that have never before been possible. Smart dust particles are very small, and each one contains sensors that can measure things like temperature, humidity, and air quality. The particles are also equipped with wireless communication capabilities, so they can send data back to a central location for analysis. The author believes that smart dust could be used for a variety of applications, such as tracking pollution levels, monitoring the health of crops, and even detecting early signs of earthquakes.

What is the main idea of this passage?

A. Smart dust particles could be used to monitor the environment in ways that have never before been possible.

B. Smart dust particles are very small, and each one contains sensors that can measure things like temperature, humidity, and air quality.

C. The author believes that smart dust could be used for a variety of applications, such as tracking pollution levels, monitoring the health of crops, and even detecting early signs of earthquakes.

D. The author believes that smart dust is the best way to monitor the environment

Reveal Answer Go Back

Correct Answer is: A

The main idea of the passage is that smart dust particles can be used to monitor the environment in ways that have never before been possible.