Answer:
Cotton and Tobacco
Explanation:
It was the most poular prouducts back in that time
Answer:
The Himalayas in the west and the Gobi in the north were two important geographic barriers. They made the spread of ideas and goods between the ancient Chinese and others outside the region difficult. The early Chinese were so isolated that they came to believe that China was the world's only civilization.
Explanation:
The correct answer is that "Many Nations utilize commercial radar on their naval ships, which may lead to misidentification".
Electronic Warfare Sensors alone are not enough to identify threats efficiently, if a ship misidentifies another nation's naval ship, it may result into a war or an argument between the two nations, which is why Electronic Warfare Sensors alone are not efficient enough to detect threats,
They break down dead plants and animals. They also break down the waste of other organisms. If decomposes weren't part of the ecosystem then plants wouldn't get essential nutrients, and dead matter and waste would pile up.
