Answer: Ecological Succession {Succession}
Explanation: During succession the organisms within an ecosystem can change it's abiotic conditions.
Do not drink mercury .
Walls are effective .
Guns are better than swords. Fireworks are cool , and can be made into bombs .
A president is better than a royal family .
Answer:
Goods require a different consumer market.
Explanation:
Goods are of higher quality and are more expensive to produce . It does not meet the needs or will allow everyday consumers to purchase them so they have a set target group of customers.
The Great Wall of China, built more than 2,000 years ago, stands as one of the monumental feats of ancient engineering. But before the Great Wall, warring Chinese dynasties built many other walls for protection. There are 7,000 watchtowers, blockhouses for soldiers, and beacons to send smoke signals. Nineteen walls have been built that were called the Great Wall of China. The first was built in the 7th century BC.
