Is this like on a test or like homeowork?
Answer:
A Elements
Explanation:
Elements are pure substances that cannot be broken down into simpler substances by ordinary chemical means.
Answer:
D. Permian. This is when 96% of all species on the planet became extinct.
Answer:
Anaerobic processes do not require oxygen.
Explanation:
Aerobic processes are the ones that do require oxygen.
Explanation:
This picture illustrate what type of selection 2 directional
