Energy Skate Park Simulation . The law of conservation of energy states that energy cannot be created or destroyed but can be transformed into another form. How can this be used to describe the skater’s energies as he moves up and down the track? Make sure you describe the relationship between K. E. and G. P.E.

satellites are frequently used to make observations of the orbit on earth

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".

i wish i could with all of them i can barley see the first one so here's the answer to the first one b