Question

explain half life of radioactive material​

Answer 1

Answer:

The half-life of a radioactive substance is a characteristic constant. It measures the time it takes for a given amount of the substance to become reduced by half as a consequence of decay, and therefore, the emission of radiation. ... When it decays to stable nickel, it emits two relatively high-energy gamma rays.

Explanation:

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Answer 2

Answer:

Drinking straws mean that it appears as if the butterflies are sipping nectar from the flowers with the straws. Fuzzy head refers to the heads of the bright yellow flowers which have a beautiful texture. Explanation: hope it works!!!