the answer is cross i think (I'm not a langauge major or anything)
Answer:
North China Plain/along the Huang He
Explanation:
The river Huang He made the land very fertile plus accsess to water, fish, and water fowl.
Missouri, Kentucky, West Virginia, Delaware, and Maryland--these states are referred to as the Border States and all were slave states that eventually chose to fight on the side of the Union.
Missouri actually split into two governments during the war over the issue of which side to support. West Virginia split from Virginia when they seceded and join the Confederacy. Delaware was surrounded by Union states and therefore saw no loyalty to the secession. Kentucky and Maryland were vital to the war effort both in their location and protection as well as resources.
I believe the answer is: <span>(4)Development of the concept of zero
</span>The concept was developed by the studies from various scholar, most notably a mathematician named Aryabhata and it <span> become the basis that is used for modern mathematics that we see today.
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This concept would even play a more crucial role int the field of engineering because due to the use of 1 and 0 as binary numbers.
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The answer is D. I’m just typing more because it needs to be at least 20 characters