China makes a lot of goods and is one of the largest countries for trading and manufacturing goods
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Acid rain from Los Angeles changed the chemistry of the river, resulting in the death of many fish.Due to human activities in Los Angeles, pollution is not anymore shocking. The acid rain would be distributed to the river which would change the environment of the aquatic life.
I believe the answer is a.
El límite entre dos cuencas se denomina como una separación de drenaje o límite de cuenca hidrográfica. Componentes de vertiente de drenaje.
