Answer:
Metre. ... The metre is defined as the length of the path travelled by monochromatic light in a vacuum in 1299 792 458 of a second.
Explanation:
Well rather than ride slaves horse and carriage were popular with slaves as attendances in case there was a need and of course trains too
That statement is true
<span> These square seals, carved in intaglio with geometric or animal motifs, served as economic documentation.
</span>The indus river valley citizen used these seals to mark the trading agreements that they made in bartering different resources between one tribe/individual with another.
