Most major European cities are located either on the sea or on a navigable river. This helped keep the city connected to the rest of the country and world, and offered more shipping and economic opportunities.
Answer:
B. all bodies in the solar system formed from an enormous gas cloud
Explanation:
The nebular hypothesis -
This hypothesis was given by Forest Ray Moulton and Thomas Chrowder Chamberlin , in the year 1900 .
According to this theory ,
The planets of the solar system are specifically composed of huge gas cloud .
Where the largest star sun is composed of the hydrogen and helium gases .
This hypothesis is widely accepted by all , and modification are done from time to time , which new discoveries .
Hence , from the question ,
The correct answer is B.
