What does pure commemoration mean?

I am a fish. I am male but I take care of all my young I can swim but I prefer to be carried by ocean currents I look like a familiar land animal What am I? Explain the process you would go through to make your instrument valid and reliable? How long is a piece of copper wire? What is the scientific word for bright? How many earthquakes happen in Rhode Island per year? When charging a battery at say 2 amps is it a cumulative charge over time or will the battery only receive a 2 amp charge? What are two ways the bamboo uses the macromolecules it builds? What is carbon transferring from a body of water to the atmosphere called? Is -42 degrees Celsius a low boiling point? Which organic compound will dissolve in the water to produce a solution that will turn blue litmus red? Why is the atomic number included in the periodic table? The structure that links sensation with emotion and is part of the altering mechanism for the brain? What are neurotransmitters for postsynaptic neuron? There are many indications of plate tectonics on Mars? Who discovered helicase and what year? What is the blood vessel that sends electrical signal to the brain in your eye? Is soap an element? What is the largest prehistoric animal not including reptiles? Application of seismic reflection in petroleum exploration? What else could be called a hydrogen bond?

What does pure commemoration mean?