Dont Listen to me but i (Think) it's Nitrogen
Answer:
Kyanite is a major raw material for the mullite used in spark plugs and other refractory porcelains. A clear, deep blue variety is sometimes cut as a gemstone.
Explanation:
Hope this help!!
A hypothesis should be tested by changing one variable in an experiment.
They are more related to fish. 1. They both live in water. 2. Both are vertebrates. 3. Both have an internal skeleton.
