Heat causes chemical reaction so that might be a way in which people use chemical properties to separate one substance from another substance .
I think the most safest way is to use a sponge or a cloth
A. Her pride, since being a slave is dehumanizing
America's economy grew by more than 400% between 1860 and 1900 Technological advances, expanding population, improved transportation, financial innovation, and new business practices combined to fuel this economic growth "Titans of Industry".
