How did using metal help ancient Chinese people increase food production? It led to wet farming for rice. It led to planting crops in rows. It led to stronger plows for tilling.
How they grew food: Rice and millet were the two main crops grown in Ancient China. Rice paddy (field) flooded from river. Rice needs a lot of water, so the Chinese figured out how to flood the fields from rivers to make rice paddies (fields for growing rice).
How did the Chinese improve farming?: By the Tang dynasty (618–907), China had become a unified feudal agricultural society again. Improvements in farming machinery during this era included the moldboard plow and watermill. Later during the Yuan dynasty (1271–1368), cotton planting and weaving technology were extensively adopted and improved.
Answer:
Choices A and C because B is not a benefit.
Explanation:
In Country A, the opportunity cost of one paper clip is 1/2. Option C
<h3>What is opportunity cost?</h3>
The opportunity cost refers to the alternative forgone in production. It means that it is the option that is chosen in the midst of other possibilities.
We can see from the table that in Country A, the opportunity cost of one paper clip is 1/2.
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Missing parts
If countries A and B produce only either rubber bands or paper clips, their maximum outputs are shown in the accompanying production possibilities schedules.
In country A the opportunity cost of 1 paper clip is
A.2 rubber bands.
B.1 rubber band
C.1/2 rubber band.
D.1/4 rubber band.
Answer:
D)Emphasize the fact that inventors see isolation from one another as essential to their work
When a person has a damaged blood vessel, the nearby tissues will release chemicals that trap blood cells to stop bleeding.
<h3>What happens when a blood vessel is damaged?</h3><h3 />
When a blood vessel gets damaged, the nearby tissues will release chemicals which act to stop blood from escaping.
Platelets will coagulate and form a sort of net that traps blood vessels and prevents bleeding.
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