C) Tc-99 is a radioactive isotope also known as radioisoptope.
Answer:
Only white phosphorus is stored under water. White phosphorus spontaneously reacts with oxygen in the air to burst into flame to form phosphorus pentoxide
Explanation:
Plants don't need sap. They make it like Maple trees.
Answer:
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Explanation:
digestive and circulatory system are most important in breaking down food and distributing nutrients throughout the body.