Answer: Development of irrigation systems to provide food for themselves
Explanation:
The Indus River valley achievements could be seen in how they developed their irrigation system to provide food for themselves. Enlisted are the following achievements they made;
1) They developed a uniform weight and measures.
2) They were the first to bring about urban sanitization systems.
3) Transportation and trade was their major goal
4) Their art was highly advanced.
You can conserve earth for living , conserve natural resources , conserve water , plant , trees, waste management , help fight deforestation , using alternate resources.
During 1803, Napoleon Bonaparte, who was the French ruler at that time, controlled the Louisiana Territory. President Jefferson believed that the French leader may be a threat to American trade and travel, so he decided to negotiate the Louisiana purchase. By doing so, the US would be able to use the Mississippi River and the Port of New Orleans more freely; both ports had been used by farmers to ship their crops and get paid. Jefferson was able to buy the Louisiana territory from France, since Napoleon Bonaparte needed money for the Great French War. As a result, with the purchase of this new territory, the land area of America nearly doubled.