Answer:
Formaldehyde is a highly reactive molecule that can be directly irritating to tissues with which it comes into contact. Human and animal studies indicate that formaldehyde, at certain exposure levels, can be irritating to the upper respiratory tract and eyes with inhalation exposure, to the skin with dermal exposure, and to the gastrointestinal tract with oral exposure. Formaldehyde-induced noncancer and cancer effects appear to occur only at portals-of-entry (i.e., upper respiratory tract, gastrointestinal tract, and skin).
The Song Dynasty in China lasted for over 3 centuries, namely from 960 A.D. till 1279A.D. This period was marked by great economic growth and is also called the Pre-Modern Economic Revolution.
Question: Select all that apply: Identify achievements of the Song Dynasty:
Answer:
1.Porcelain (they produced porcelain for royal use)
2.weaponry (gun powder)
3.agriculture ( flourishing market with extensive trade routes)
5.block printing ( movable type printing and bank notes)
<span>The system of democratic government that began to develop in the first decade of the 5th century B.C. in the Ancient Greek city-state of Athens was a direct, rather than representative, democracy, and every adult male citizen could participate. An assembly of citizens and a council, or boule, met on an almost weekly basis and was responsible for deciding upon the civic and foreign policy affairs of the city-state. Not only were Athens' citizens encouraged to participate in the assembly meetings, those who did not participate were often ridiculed for their lack of involvement.</span>
The correct answers are dry farming, reapers, threshing machines, seed drills, and steel plows. These are the new methods and technology that revolutionized agriculture and made it practical to cultivate the plains. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
