The Answer is D. Suspending a heavy weight with a strong chain.
How does the law of conservation of mass apply to this reaction: C2H4 + O2 → H2O + CO2?
Answer:
B extinction
Explanation:
as the species does not exist any more, the species is extinct, therefore making the pictured fossil of an extinct species
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Which is a correct description of the organization of subatomic particles in atoms?
Protons and neutrons are tightly packed into a small nucleus. Electrons occupy the space
outside the nucleus
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