Answer:
All are correct except the age of earth. The age of Earth is approximately 4.543 Billion Years.
It transfers and changes into different types of energy, this is why the ground feels hot when something moves fast over it.
Combination or composition, in particular.
The magnetic form of a substance can be determined<span> by examining its electron configuration: if it shows unpaired electrons, then the substance is paramagnetic; if all electrons are paired, the substance is diamagnetic.</span>
