<span>These three regions have few natural resources and depend on energy resources and external raw materials. They have scarce deposits of natural resources and reserves of mines minerals to subsist. The policies of the communist era and the lack of attention to ecological issues caused serious problems in the environment of several regions.</span>
Answer:
The use of fertilizers
Explanation:
Eutrophication simply implies the increase in nutrient or nutrient enrichment.
Commonly, waterways are connected to other water bodies. When water from farmlands washes fertilizers into them, there is an increase the available nutrient. Overtime, the water can be oversaturated with nutrients and this would lead to eutrophication. We can attribute eutrophication to human activities.
When tectonic plates separate, they diverge allowing magma to flow. Simply put it is D
B, Māori customs, rules, values and ideologies (tikanga)
Hope I can help you :) Brainliest answer?