Answer:
I don't know but it might be B
Answer:
In ecology and biology, abiotic components are non-living chemical and physical factors in the environment which affect ecosystems. Biotic describes a living component of an ecosystem; for example organisms, such as plants and animals. Water, light, wind, soil, humidity, minerals, gases.
Answer:
From largest to smallest they are: Universe, galaxy, solar system, star, planet, moon and asteroid.
Can be caused by radiation.
Answer :
Perform Heimlich maneuver
