Uranium,thorium,and the Radioactive Isotope of Potassium Cannot Supply the Heat

question 31

Multiple Choice

Uranium,thorium,and the radioactive isotope of potassium cannot supply the heat to melt small planetesimals,but the existence of iron and achondrite (stone) meteorites indicates that some asteroid sized bodies did melt inside.This is thought to be because short lived,intensely radioactive aluminum 26 atoms

• A) were much more abundant in the solar nebula at the location where the asteroids formed.
• B) were not present in the solar nebula at the location where the asteroids formed.
• C) are only found in the outer layers of asteroids and not in the core.
• D) are very volatile and evaporated from the asteroids before they could decay.
• E) are only found on rocks that formed on the earth and in no other celestial objects.

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Definitions:

Co-Facilitator Approach

A method in educational or therapeutic settings where two or more facilitators share responsibility for managing discussions, activities, or group processes, enhancing diversity of perspective and distribution of workload.

Different Experiences

Refers to varied encounters or events that an individual or group has gone through, contributing to diversity in perspectives.

Superior Role

A position that holds higher authority, responsibility, or status compared to others within a hierarchical structure.

Shared Vocabulary

A set of words and terms that are commonly understood and used within a specific group or community.