the marginal social benefit of producing and consuming another unit equals the marginal social cost.
European nations moved away from the communist rule except Russia. The Russian leaders were effective and kept their constituents in line. Though they fell as a Communist country because they were not able to establish connection with the Soviet led bloc states and their leader was supporting the Western Democracy than Communism.
The answer would be letter A.
If a can remember it was answer D
Trade along the Silk Road has had the following effects on the world around 1000 CE:
A.) People in South and Eaat Asia ate foods grown in the Middle East.
D.) People in South Asia has access to materials such as silk and glass.
Answer:
Bellows
Explanation:
A bellow or pair of bellows is a device constructed to furnish a strong blast of air. The simplest type consists of a flexible bag comprising a pair of rigid boards with handles joined by flexible leather sides enclosing an approximately airtight cavity which can be expanded and contracted by operating the handles, and fitted with a valve allowing air to fill the cavity when expanded, and with a tube through which the air is forced out in a stream when the cavity is compressed
