The coal industry!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The four great inventions of China are known as Compass, Gunpowder, Papermaking, Printing
Explanation:
These four inventions of the China not even helped the China but also the countries of the world to achieve growth and development.
Gunpowder- This was the explosive which was discoed in the late 9th century (Tang dynasty). This invention helped the Mongol and other Asia, Middle East and European countries to won the war against their enemies.
Papermaking- The papermaking helped to fulfill the many purposes such as printing, writing and packaging which helped the lot of people gain knowledge through printed books and papers while the packaging proved helpful in commercial and business activities.
Printing- This industry helped in the exchange of ideas and the exchange of knowledge on an unprecedented scale.
The answer to 10. is the sherman anti trust act
Congress should have the power to regulate interstate commerce.
