Answer:
But just because brain cells may be able to live indefinitely doesn't mean humans could live forever. Aging is dependent on more than the life span of all the individual parts in the body, and scientists still don't understand exactly what causes people to age.
Most likely melancholy, as that was the pint of many 'Blues' songs
The guitar is usually not an orchestral instrument.
Explanation:
Line is a mark with greater length than width. Lines can be horizontal, vertical, or diagonal; straight or curved; thick or thin. Shape is a closed line. Shapes can be geometric, like squares and circles; or organic, like free-form or natural shapes. Shapes are flat and can express length and width.