CBSE Class 9 Words and Expressions NCERT Solutions - Chapter 1

Based on typical visual cues associated with the genre, book jackets numbered 1, 4, 5, and 6 are likely to resemble those of science fiction books. This impression is derived from the titles and imagery often found on such covers, which commonly relate to themes of space exploration, futuristic concepts, advanced technology, or extraterrestrial life. These elements collectively suggest content aligned with the science fiction genre.

This section requires reading two passages, 'The Future Cars' and 'Drones and Flying Cars', followed by answering comprehension questions based on their content. The passages discuss advancements in transportation and technology, such as self-driving cars and drones, and their potential impact on society.

This introductory text sets the stage for discussing future technologies by referencing the story 'The Fun They Had'. It highlights a future where education is technologically advanced, involving virtual classrooms and robotic teachers. It also poses a rhetorical question about future generations' surprise at the concept of people manually driving cars, hinting at the advent of autonomous vehicles.

This passage explains the current state and future potential of self-driving cars. It asserts that these vehicles are already safer than human-driven ones in many situations and will become even more prevalent and secure in the coming years. The text emphasizes their transformative impact, comparing it to the effect of cars in the 20th century. A key benefit discussed is the significant reduction in parking needs, as self-driving cars will be used more continuously, often summoned via apps. Furthermore, vehicle-to-vehicle communication is highlighted as a method to prevent accidents and traffic congestion, allowing passengers to utilize travel time for other productive or leisure activities.

This section discusses the evolution and expanding applications of technologies like GPS and drones, drawing a parallel between their origins and current uses. It notes that GPS, initially developed for military purposes, is now commonly used for navigation and ride-hailing services. Similarly, drones, which also began as military technology, are now finding diverse consumer and commercial applications. Examples provided include using drones for inspecting essential infrastructure such as bridges and power lines, and for surveying regions affected by natural disasters, indicating their growing versatility.