D because I learned this 2 years ago
The Gulf Stream, for example, has an average speed of 4 mph, or 100 miles/day, or 3600 miles/year, in round numbers. A complete circuit around the Atlantic is 8 or 10 thousand miles, which would take around 3 years on a raft.
Answer:b) atoms
Explanation:which are in turn made up of protons, neutrons and electrons