Warmer city nights · explain the effect of buildings and pavement

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Your new ahaBuildings and pavement store heat, creating an urban heat island effect.

Urban surfaces can store heat and release it after sunset. Source: Urban heat island ↗

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53Invasive species · explain the termRECALL
A non-native organism that causes harm in a new environment.
Not every introduced species becomes invasive; the key issue is ecological, economic, or human harm.
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54Composting turns organic scraps into this nutrient-rich, soil-like material.RECALL
A soil-like material rich in decomposed organic matter.
Compost can return nutrients to soil when made and used carefully.
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55Soil · explain its living and nonliving componentsRECALL
It is a living mixture of minerals, organic matter, water, air, and organisms.
Healthy soil supports plants, stores water and carbon, and cycles nutrients.
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