Fine soil found on the bottom of rivers is called silt.
It might be D, since that ties with agricultural
Railroad technologies
City planners saw a great promise in railroad technologies in resolving the problems facing public transports. As a result, railway transport was immensely integrated into several city public transport systems.
Answer:
By January 1879, at his laboratory in Menlo Park, New Jersey, Edison had built his first high resistance, incandescent electric light. It worked by passing electricity through a thin platinum filament in the glass vacuum bulb, which delayed the filament from melting.
The answer you are looking for is factions.
