Question

what is the large source of emission in the air? ​please answer me correct​

Answer 1

Answer:

Human activities are responsible for almost all of the increase in greenhouse gases in the atmosphere over the last 150 years. The largest source of greenhouse gas emissions from human activities in the United States is from burning fossil fuels for electricity, heat, and transportation.

Answer 2

Answer:

Numismatics is the study of coins and other currency units and is usually associated with the appraisal and collection of rare coins. Numismatists study the physical properties, production technology, and historical context of specimens of currency.