What is the distance a light wave will travel in one year? 1 kilometer
O 1 galaxy
1 year
0 1 light-year

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

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

What is the one part of the nucleotide  that differs among the other different nucle  tides?