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Answer: 3,240,000 L
Explanation:
Each tree requires 20 L of water per day for 180 days.
Each tree therefore requires;
= 20 * 180
= 3,600 L per day
There are 900 trees to be grown;
= 900 * 3,600
= 3,240,000 L of water are required for 900 trees.
<span>Civilizations wanted to settle and build cities and/or outposts along trading routes for so it would be easy to acquire what they didn't have, and sell what they did, and gain economic prosperity. These became the most desirable and wealthy spots, and thus were fought over in wars.</span>
It can only identify if it's gold. By rubbing the tile on hold should leave a gold mark on tile