Human activities such as burning of fossil fuels caused carbon dioxide levels to change at a faster rate from thousands of years ago.
What is Carbon dioxide?
This is a gas which is derived from carbon reacting with oxygen and is formed when fossil fuels such as coal are burnt in air.
The use of petroleum products from fossil fuels in automobiles and industries are responsible for the increase in carbon dioxide level.
Read more about Carbon dioxide here https://brainly.com/question/25385913
#SPJ1
