How many things in martin luther king's "i have a dream" speech have been accomplished today and how many more still need to be done?

What are contributions made by rene descartes

Which answer best describes an advantage of shipping goods by canal? most towns would rather have canals than noisy railroads. goods could travel very fast downstream in the canal system. travelling by boat is a much more relaxing way to transport goods. heavy loads of goods could travel by boat more easily than if pulled by horses.

Why was isaac newton’s mathematical principles of natural philosophy important to the scientific revolution