Why did Matthew Henson and Estevancio explore?

What are the 3 subsystem of the Nervous System? Is gas exchanged in the pleura? Fossils of fully preserved ancient insects are most commonly found in? What compression waves passing through the liquid outer core are? What is the silaurian period? What does the alleged discovery of the higgs boson particle mean when applied to string theory? What word would you use to describe a strong solution with lots of solute? Does the moon ever turn rainbow? What is bigger Mercury or Ganymede? What is the state of matter of each element in the group at room temperature 25C? What is the substance present in larger amount in a mixture? What are the important landforms of ancient kush? Where is the meadow plate in Pokemon platinum? Is selenuim a metal? What is the Inner embryonic layer called? How do you remember the femur? Is there a chemical or compound that you can taste if you touch it? How do the cell in a single-celled living thing compare with the functions of cells in a multicellular living thing? On what state of matter does convection work best And why? How hard is quarts?