Answer:
A group of self-propagating thunderstorm cells that can last for hours.
Explanation:
The correct option is 1) Density-dependent.
<h3>What is reason for the decline in the caribou population?</h3>
The major causing for the decline in the caribou population are the hunting, disease, diminished food availability, and climate change.
Caribou depends on the food and habitat resources of the Arctic ecosystem which has been destroyed by the human disturbance.
Increasing number of other large carnivores also impacted the population of the caribou.
Learn more about the caribou here:-
brainly.com/question/20984461
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C is the answer I know for sure