The human activity that creates the least threat to global stability is : Reuse of Plastic bags.
Plastic bag need a lot of time to be degraded in the soil which will create a threat to the environment. Reusing plastic bag will reduce this threat.
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Groundwater is the water found underground in the cracks and spaces in soil, sand, & rock.
It is the third option
Carbon dioxide (CO2) + Water (H20) produces Glucose (C6H12O6) and Oxygen (O2)
Answer:
Make up the skull and composed of the brain
Explanation: