Answer:
Radiometric dating, often called radioactive dating, is a technique used to determine the age of materials such as rocks.
Answer: 0.05
Explanation:Divide the length (1.5 cm) by the number of turns (30)
Extreme weather e.g. snow and cold weather. Another main contributing factor is that many places have a long dry season.
Take mass of zinc divided by the relative molecular mass - 30 for zinc ( from periodic table)
Hope you could understand.
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