Answer:
The major difference between a primary cell and the secondary cell is that primary cells are the ones that cannot be charged but secondary cells are the ones that are rechargeable
Explanation:
The ice melts because Thermal energy from Jan’s hand is transferred to the ice.
<h3>What is thermal energy?</h3>
Thermal energy is the energy due to temperature difference.
Thermal energy flows from hotter to colder bodies.
The ice Jan is holding melts because heat is transferred from his hands t the ice.
In conclusion, thermal energy flow causes melting.
Learn more about thermal energy at: brainly.com/question/19666326
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The answer is <span>oligotrophic</span>