The main source of water in the Northwest of China are rivers and Lakes.
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Answer:
Naval bases , Refueling stations.
Explanation:
The Europeans have developed the pacific island of the Fiji, Nauru, Palau, Tonga and the Samoa, Vanuatu for the naval base and the refueling activities, similar to those of the Chinese there traces have been found in the 420 and the 200 B.C. The Melanesians, and Micronesians, Polynesians are some of the island groups that are explored by the Europeans and they are by the Portuguese explorers.
Explanation:
.org I think that's that right answer
A because 60 divided by 20 is 3 so it is going through 3 stages of half life. 40/2=20 which is one half life then 20/2=10 which is the second half life then 10/2=5 which is the 3rd and final half life
