I think it is 50°. If 130 is also the angle of elevation, then it is also the angle of depression. So the two angles up there (depression and x) equal 180 so - 130 = 50.
D. because A would not fit in the way its telling people
Answer: It is a secondary source.
Explanation: It uses a primary source as a subject.
They abandoned the nomadic life by developing farming techniques through water management, including canal-building, water storag, drainage, irrigation.
With the prosperity which this generated, they moved on to development of almost all the techniques that formed the basis of civilized life before the industrial revolution: architecture, transport, metalworking, carpentry, pottery, glass-making, textile manufacture and leather-working as well as many processes associated with farming and food preparation. In southern Mesopotamia irrigation and flood control were necessary and this gave rise to a number of subsidiary technologies of
Answer:
Correct answer is C. People elect officials to represent them.
Explanation:
A is not correct answer because this is not something that describes representative democracy. One of the main rights of people is to vote.
B is not correct as they vote on free elections that are organized by the government.
C is correct because people are choosing officials (Representers) who are presenting and fighting for their rights.
D is not correct as people are voting on elections, not for every change in the system.
