Acidic groundwater dissolving limestone
<span>Lipids have long been used as lamp oil and along with candles were the main fuel for pre-industrial light sources. Whale oil was one of the main fuels harvested and fueled the 19th century whaling industry leading to widespread endangerment of various species. This practice is now outlawed except in a number of countries which mostly hunt whales for cultural purposes.</span>
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Explanation:
Answer:
Humans are a big reason for this issue. Things such as pollution, hunting, construction, and animal testing all effect the wolves population. Their food is hunted by humans so its harder for them to hunt, humans tear down trees and take over ground so theres less places to live, they might eat things like plastic because people litter, and things like dangerous weather can harm these animals.
