Answer:
Hydrogen and part oxygen
Explanation:
Water is composed of these two which makes the symbol H20
The small intestine is the longest part of alimentary canal with a length of 4.5 to 7 m and narrow in width, while the large intestine is the hinder-most part of the alimentary canal with a length of 1.5 m. it called the large intestine because it has a width of 4-6 cm. Also in the large intestine circular folds are absent while its present in the small intestine.
Rigid skeletons are formed from materials including chitin (in arthropods), calcium compounds such as calcium carbonate (in stony corals and mollusks) and silicate (for diatoms and radiolarians).
The answer is C
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1 is moving or kinetic energy of course because it is energy in motion.
