If Present in Equal Amounts When the Earth Was Formed, Calculate

question 11

Essay

If $${ } ^ { 232 } \mathrm { Th } \text { (half-life } 1.4 \times 10 ^ { 10 } \text { years) and } { } ^ { 238 } \mathrm { U } \text { (half-life } 4.5 \times 10 ^ { 9 } \text { years) were }$$
present in equal amounts when the earth was formed, calculate their relative abundance at present. Note: The age of the earth is 4.54 billion years.

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Definitions:

Representativeness Bias

A cognitive bias where individuals make judgments about the probability of an event based on how much it resembles their existing stereotypes.

Escalating Commitment

The phenomenon where people increase their investment or involvement in a decision or action despite facing negative feedback or outcomes.

Confirmation Error

A cognitive bias that involves focusing on information or evidence that confirms pre-existing beliefs or hypotheses, while ignoring contradictory data.

Strategic Opportunism

The practice of seizing strategic opportunities in a timely and efficient manner, often with flexibility and readiness to adapt.