The theory of infinite universe and the theory of vacuum as a substance. First was disproved by the discovery of the big bang and the later by some experiments with light which have shown that vacuum is not a substance but empty space.
Answer:
We used coal for electricity, water for steam engines when we used them, natural fossil fuels for gasoline and oil and we use earths oxygen/nitrogen gases to breathe
Explanation:
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Answer: convalent compounds share two elements in forming a BOND between atoms
Explanation: if you dont believe me look it up and google will give you the same answer
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Answer:
Option A) Exothermic Reaction
Explanation:
In exothermic reaction, the energy is released. The reactants are at high energy while the products are at low energy as shown in the graph.
Answer: sound can slow down, so when it travels through all of that it's muffled and kind of blocked. sound travels at 332 metres per second so it's hard to stop the sound
Explanation: