Can some1 Pls help me. I'll give brainliest if your correct.

1 and 2 The Sound has remarkable patterns of water circulation that support its thriving ecosystem, and which give rise to water quality problems such as hypoxia.

3. World War I transformed the city's shipbuilding industry

Explanation:

The deep and complex troughs that make up Puget Sound were carved by glaciers

The Sound has remarkable patterns of water circulation that support its thriving ecosystem, and which give rise to water quality problems such as hypoxia.

and seattles natural features changed by humans were probably changed because its a city bulit of hills around all of the water and it gradually growed from time and started to add rail roads and more buildings with more people but im not to sure

Explanation:

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