Mollusca (Mollis: Soft) is the second largest phylum.
Unique features of phylum Mollusca:
1. Habitat: They are aquatic or seen in marshy places. Few of them are terrestrial.
2. Forms: Molluscs are either...
When the rule of the Han dynasty ended, China disintegrated into three parts.
Because of this disintegration, China was not left with any alternative path to reach the Silk Route.
Hence, the...