The era of the Shang<span> and the Zhou </span>dynasties<span> is generally known as the </span>Bronze<span> Age of China, because</span>bronze<span>, an alloy of copper and tin, used to fashion weapons, parts of chariots, and ritual </span>vessels<span>, played an important role in the material culture of the time.
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The correct answer is letter D
A production process is a system of actions that are dynamically interrelated and that are oriented towards the transformation of certain elements.
Make equations first
Consider bigger number is X and smaller number is Y
condition 1,
3X+3Y = 34----------eq 1
condition 2,
2X-5Y = 9-------------eq 2
multiply eq 1 by 2 and eq 2 by 3,
6X+6Y = 68
6X-15Y = 27
Substracting above equation,
21Y = 41
Y = 41/21
Substituting Value of Y in eq 1,
3X+3×41/21 = 34
3X = 34-41/7
3X = (238-41)/7
3X = 197/7
X = 197/21
Hence X = 197/21 and Y = 41/21
The process in which any population people choose their mates according to their preferences is known as assortative mating.
Example:
- A short height women to mate or marry with short man.
- A long height man wants to marry a tall women.
So, the tendency in which individual wants to mate those individual who are similar to them is called assortative mating.
