12 Read the text about drones. Answer the questions (1-9) using a maximum of 4 words.

What is a drone?

Drones, also referred to as “Unmanned Aerial Vehicles” (UAVs), are meant to carry out tasks that range from the ordinary to the ultra-dangerous. These vehicles can be found assisting the rescue of avalanche victims in the Swiss Alps, at your front doorstep dropping off your groceries and almost everywhere in between. Drones have even made their way into our homes and serve as entertainment for hobbyists and a working tool for photographers.

Originally developed for the military and aerospace industries, a drone can operate without a pilot on board and with different levels of autonomy which range from remotely piloted (a human controls its movements) to advanced autonomy, which means that it relies on a system of sensors and LIDAR detectors to calculate its movement.

Close-range drones can usually travel from 3 to 30 miles and are mostly used by people in their free time. Short-range drones travel up to 90 miles and are used primarily for spying and intelligence activity. Midrange UAVs have a 400-mile distance range and are usually used for scientific studies and meteorological research. The longest-range drones are called ‘endurance UAVs’ and have the ability to go beyond the 400-mile range and up to 3,000 feet in the air.

Since drones can be controlled remotely and can be flown at varying distances and heights, they can take on some of the toughest jobs in the world. They can be found assisting in a search for survivors after a hurricane, giving military support during terrorist situations or advancing scientific research in some of the most extreme climates on the planet.

Adapted from:

1. Which other term is used for drones?

2. What can drones be used for in the mountains?

3. How can a drone serve a hobbyist or a photographer in daily life?

4. What were drones originally developed for?

5. All drones can operate without a pilot, but what is the difference between the types of drones?

6. If you worked for the Intelligence Service, what type of drone would you use?

7. What kind of studies and research can be made with a mid-range drone?

8. How far is an endurance drone able to go?

9. When can a drone give military support?

Libro digitale in formato "liquido"