Answer:
嗨，河北少年想 嗨，河北青少年想要可汗破冰船伊莎贝尔 破冰船伊莎贝尔
It's simple food gathering is early days and the other is not
Answer:
The Song dynasty (960-1279) follows the Tang (618-906) and the two together constitute what is often called "China's Golden Age." the inventions of gunpowder, the compass, and printing all occur under the Song.
Answer:
D. transfer of heat between two objects are touching
Explanation: Conduction is the process by which heat is transferred from one object to another object that are touching and have different temperatures.
Eg: We can use hot water pack to warm our back. Or While cooking we can feel the conduction process when heat process from the bottom of the pan to the top of the pan
