The development of agriculture was set in motion by hitching animals to the plow. The correct option among all the options that are given in the question is the second option. At the beginning, people did not use animals for agricultural purpose, but with passing of time the utility of the animals for agriculture was understood and it made cultivation easy.
A broad, marshy, triangular area of land formed by silt deposits at the mouth of a river.
I took notes about this a long time ago
The Richter scale is used, from 0.1 to 9.0 magnitude. The Richter scale is determined from the logarithm of the amplitude of waves recorded by seismographs.
Answer:
Singapore has very few natural resources. However, it takes full advantage of those few that they have. Deep water reserves of petroleum are mined and exported to other countries. Also, Singapore is important in electronics, as they are a key maker in computer products.
Explanation: