When a wind-up toy is released, the energy in the compressed spring is converted into the energy of the toy's moving parts.

An easy way to calculate the amount of energy available at each level is to what?

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

Biology ! the conversion of inorganic carbon to organic carbon by plants during photosynthesis is known as _[blank]_. filtration immigration reabsorption primary production