<u>Answer:
</u>
Subsistence farming is the level of crop output from a given level of input.
<u>Explanation:</u>
- Farmers grow "food crops" to feed themselves and their families. There will be little or no surplus trade as they get output for whatever input.
- This process is called subsistence agriculture or subsistence farming. They raise the livestock for their own’s use but not for any trade activities.
- For example: nomadic people raise a cow to provide milk to their own family.
- They give sufficient and necessary food for the cow an get the required quantity to suffice their family.
Shang Cities
During the Shang Dynasty, there were several large settlements, including Zhengzhou and Anyang, though these are not believed to be as densely urban as Mesopotamian settlements during the same time. Anyang became the capitol around 1300 B.C. under King Pan Geng and at the time was called Yin.
Answer:
B. Cementation and compaction
Explanation:
Sediments compact under pressure, then they lose fluids, these fluids cement together and eventually becomes solid rock, this process is known as lithification.
Cementation is when fluids from the loose rocks bind themselves together. If the loosely bound rocks are inorganic, they form and turn to clastic rocks but if it contains organic matter, it is known as bioclastic.
In essence, this destructive phase of sedimentary rock formation is known as cementation and compaction.
