A. small states have little influence on the eventual outcome.
<span>The correct answer is a combination of privately-owned businesses and government regulations. In a mixed economy, the government allows for private businesses to supply certain goods. However, the government is involved in supplying critical goods such as in the utility sector. It can also intervene when need arises.</span>
Scientists can use the color of minerals to tell them apart.
Idiochromatic minerals <em>(self-colored) </em>due to their composition. The color is constant and predictable.
Allochromatic minerals <em>(other colored) </em>due to trace impurities or defects in their structure. The color is variable and unpredictable.
Pseudochromatic minerals <em>(false colored)</em> due to effects produced by light. The color is variable but a unique property of the mineral.
The correct answer is the plow. When the plow was invented agriculture was made much easier which enabled people to settle around and make surplus of food. This enabled them to trade with others and increase the size of the cities and the rest is history.