<em>After World War II, many people moved from the cities to _____.
</em>
suburbs
<span>It's is the second one. The waste materials generated by one organism are often reused by other organisms.Mass, or matter, is conserved in all physical and chemical changes. Matter is not created or destroyed within ecosystems, it only undergoes physical or chemical changes. One example of this process is that the waste materials generated by one organism are often reused by other organisms as food or nutrients.</span>
Decomposition<span> is the </span>process<span> by which organic substances are broken down into a simpler matter. The </span>process<span> is a part of the nutrient cycle and is essential for recycling the finite matter that occupies physical space in the biosphere. Bodies of living organisms begin to </span>decompose<span> shortly after death.</span>
Answer:
The Soviet Union under Joseph Stalin and The People's Republic of China with Mao Zedong
Explanation:
It's on Britannica
