Answer:
The USSR collapsed mainly due to A), but the answer is D) because all of the above are true.
Explanation:
Soviet communism was unsustainable, Soviet goverment was very oppressive so people wanted more freeedoms, and with the Cold War there was pressure from the West.
For Athens,If a child had any imperfection they were often killed or abandoned, sometimes abandoned infants were taken in or adopted by a wealthy family, but most of the time they became a slave of the adoptive family.<span />
<span>Unstable nuclei can break apart spontaneously, changing the identity of the element.
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