Answer:
underground economy
Explanation:
Underground economy -
It is the economic transaction which is consider to be a form of illegal activity , which may be due to the goods and services or failure in transaction , is referred to as underground economy.
The example of underground economy is smuggling of goods , untaxed sale of the goods and services , untaxed labor etc.
Hence , from the given scenario of the question ,
The correct term is underground economy .
Answer: Explanation
Explanation: Explanation is to explain or tell the meaning of something
They come late - without any notification, usually not nice. they delay, or corruption.
There are several physical properties know can use for differentiating the two minerals that have the same color and size, they are the following:
- Hardness: This is because different mineral resources have different levels of ability to resist external pressure such as scratching.
- Luster: different mineral reflects lights differently. Some minerals don't even exhibit luster.
- Fracture: different minerals break differently which depicts their fracture properties.
- Tenacity: different minerals exhibit different breaking points to an external force.
Hence, in this case, it is concluded that there are various physical properties one can use to identify minerals that have the same color and size.
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