soild
division or dividing into a particular groups
more useful, the most useful
more useful, most useful
That really depends how you decide to classify the types of energy.
The person who studies the way of life is called a paleontologist.
domain: broadest category used to classify life forms
Solar Energy
it forms when electricty runs through a curcit through two wires
A way that angiosperms are not useful to people as a major source of fertilizer. In angiosperms, after a zygot is formed a fruit forms.
They are useful in reducing fractions to their simplest forms.
Ozone is useful. The oxygen forms again transforms to form ozone.