Giải giúp em với ạ (có giải thích càng tốt ạ) 1. Social networking sites can be used for creating your ___________________ profile and contacting your friends. (person) 2. Studies have shown that _____________________ for inventions mostly comes from the natural world. (inspire) 3. Scientists and _______________________ have observed things in nature to design new products to serve humans. (invent) 4. Since then, Velcro has gradually become a familiar _________________ for shoes, jackets and even spacesuits. (fasten) 5. This 3-D ____________________________ is used to produce solid objects similar to the originals. (print) 6. Traffic ________________________ has been considered one of the most serious and urgent problems of our country. (congest) 7. The petrol ___________________ of this type of motorbike is estimated approximately 2 litrers per 100 km. (consume) 8. A digital camera is quite ___________________ because you do not have to spend money on rolls of film. (economy) 9. Some people like a small screen, as it is portable, but the other ones want a __________________ one to watch films conveniently with big images. (bulk) 10. A medical _________________________ is the invention which is admitted to be really humane. (incubate)