I think the answer is A. You become a legal adult at the age of 18 .
In the absence of an atmosphere, Earth’s surface temperature would be about –18°C, or 0°F, which is way too cold for life. Greenhouse gases have just the right molecular structure to absorb infrared radiation that the Earth emits. It re-emits most of that infrared energy in all directions, warming the atmosphere to its comfortable average temperature of 15°C (60°F). So the greenhouse effect is a good thing.
The Berlin wall was used to divide east berlin and west berlin
The leaders of the dynasties are many, as dynasties last much longer than human life. It would mostly be the Chinese emperor of th time.
If you mean the founders: the founder of the Han was emperor Gao (previously rebel leader Liu Bang) and the founder of Qin was Duke Xiang, a leader of a war expedition.
The correct answer is 1. display rules.
Display rules is a term describing informal rules about the way, the time and the place that a person should express and communicate his/her emotions. These rules are not set since they differ greatly depending on the culture and the society. In this example, Jessica showed exaggerated excitement when hearing about her friend's engagement. This is because according to the display rules these were news that should make her very happy.
