Answer:
Mass and density
Explanation:
Density of an object is defined as its mass per unit volume. Mathematically, the relation is given by :

m = mass and V = volume
If we know the density of the Eraser and its mass, we can easily find its volume. Hence, the two tools are mass and density.
Answer:
Zeus
Explanation:
Thunder and lightning play a large role in Greek mythology, with the god of the sky, Zeus, able to harness the elements' power to use as a weapon. He was the ruler of all the Olympian gods and the god of lightning, thunder, law, order, and justice.
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Answer:
Modernizations were goals first set forth by Deng Xiaoping to strengthen the fields of agriculture, industry, defense, and science and technology in China The Four Modernizations were adopted as a means of rejuvenating China's economy in 1977, following the death of Mao Zedong, and later were among the defining features of Deng Xiaoping's tenure as head of the party.
Explanation: