(Q).
Q: The van allen radiation belts are two regions in which energetic charged particles are trapped in earth's what? Choices: - gravitational field - cloud cover - ionosphere - magnetic field A:
(A).
magnetic field

(Q).
Q: The first few species to colonize a disturbed area are called what? Choices: - producer species - original species - colonization species - pioneer species A:
(A).
pioneer species

(Q).
Q: Plants can absorb inorganic nutrients and water through their root system, and what gas from the environment? Choices: - hydrogen dioxide - nitrogen dioxide - chemical dioxide - carbon dioxide A:
(A).
carbon dioxide