B. Abiotic
Explanation:
The role of flowing water in this ecosystem is abiotic.
- Abiotic factors in an ecosystem are the non-living factors that shapes an ecosystem.
- An ecosystem is made up of both living and non-living components.
- The action of running water is termed erosion and it shapes the land form as seen in the badland.
- This is an action not related to life and living organisms.
- It is an abiotic factor.
Learn more:
Abiotic factors brainly.com/question/1542938
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Answer:
Cyanobacteria are responsible for first adding oxygen to the Earth's atmosphere.
Answer: Option A.
Physical method of euthanasia may be the most humane method for relieving pain and sufferings for some instances.
Explanation:
Euthanasia is a physician assisted method with the deliberate intension to end ones life which might be due to some difficulties a person is passing through to relieve persistent pain. A Doctor is allow under law to do euthanasia for a patients if the patients family and friends agree to it.
Physical method of euthanasia includes gunshot, electrocution,freezing, microwave irradiation,cervical dislocation, decapitation,decompression, use of captive volt , pithing and so on.
I would say carbon dioxide
This is a process known as symbiosis!
