A biological community together with its physical habitat constitutes a(n) ecosystem .

Ecosystem

Explanation:

An ecosystem describes an area where organisms (such as plants, animals, and fungi interact with non-living, physical factors like the weather, light, and soil.

The relationships between all these factors allow energy to flow through all the organisms and also permit nutrient cycling

b, acidosis

acidosis is when the human body attempts to return the bloods ph levels back to normal when the blood is acidic

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology