Question

describe the impacts el nino has in australia.
□ increase upwelling
□ decrease upwelling
□ increase in fishing
□ decrease in fishing
□ decrease in biodiversity
□ increase in biodiversity
□ increase in rainfall
□ drought

Explanation:

El Niño disrupts normal ocean-atmosphere patterns near Australia:

1. Weakened trade winds reduce cold, nutrient-rich water rising from the deep, decreasing upwelling.
2. Less upwelling means fewer nutrients for marine life, harming fish populations and leading to decreased fishing activity.
3. Reduced marine productivity and ecosystem stress cause a decrease in biodiversity.
4. El Niño shifts rainfall patterns away from Australia, leading to prolonged drought conditions instead of increased rainfall.

Answer:

• Decrease upwelling
• Decrease in fishing
• Decrease in biodiversity
• Drought