Which example is a long-term environmental change? O La Niña
O EI Nino
O climate change
O small asteroid impact

C

Climate change

Explanation:

Climate change is an example of long-term environmental changes because this implies indefinite and major changes in weather patterns and ecosystems. For example, it is believed climate change will decrease the amount of ice in Earth, change sea level, and lead to the extinction of dozens of species.

c is the answer because when something is left after something evaporates that shows the chemical change.

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.