Answer:
Air pollution would most likely trigger climates change.
Explanation:
Poor air quality can lead to fires, diseases, and higher air temperature
Carbon-14, also known as radiocarbon, is radioactive.
Answer:
The correct answer is - a density independent factor.
Explanation:
Any external cause or change that leads to the change in the size of a population regardless of the density of the particular population known as a density independent factor in ecology.
Density independent factors are the factors that are not affected by the size of the population size of the species such as weather, climate and natural disasters.
Thus, the correct answer is - a density independent factor.