(2) Growing popularity of radio and motion pictures
Answer:
compaction and cementation
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There is 118 elements<span> in the periodic table</span>
Answer:
alpha particles
Explanation:
alpha particles the least penetrating but potentially most damaging and gamma rays the most penetrating. A beta particle, also called beta ray or beta radiation, is a high-energy, high-speed electron or positron emitted by the radioactive decay of an atomic nucleus during the process of beta decay.
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