Answer:
Labor Day is a federal holiday in the United States celebrated on the first Monday in September to honor and recognize the American labor movement and the works and contributions of laborers to the development and achievements of the United States. It is the Monday of the long weekend known as Labor Day Weekend.
I believe it is fall in the north and spring in the south
<u>Answer:</u>
The "Tian Shan" is a great resource for iron, coal and lead mining.
<u>Explanation:</u>
- The Tian Shan that is located in the central part of Asia is a huge system of various mountain ranges that are said to have formed in the Pliocene period, about '7 to 2.5 million' years ago.
- It is spread over an area that is 2500 kilometers long and about 500 kilometers wide.
- The Tian Shan hosts numerous deposits of coal, iron, and lead.
Answer:
a. Mass
Explanation:
The relation between the physical properties , luminosity and mass , is given by the formula -
L = M ^ 3.5
In which ,
L represents luminosity
and
M represents mass.
Hence , from the above formula ,
mass and luminosity are directly proportional to each other , i.e. ,
by decreasing the mass , the luminosity decreases
and by increasing the mass , the luminosity increases
higher luminosity means , higher temperature , and , in case the star has higher mass , its radius will also increase .
