Leonardo da Vinci <em>was famous for his designs, art, cartography, geology, and studies. Leonardo's designs later helped us to invent things like the tank, parachute, helicopter and many other things. He was also a very talented artist. Most of his pictures and paintings are in art galleries and museums. One of his most known paintings is the Mona Lisa. He made many maps of many different places. He was also interested in geology. He studied many different things, including math, reading, and writing backwards. People think he wrote backwards because he didn't want to smear the ink, but others thought he didn't want people to steal his ideas. </em>
Rubber trees are a natural resource found in Indonesia and Malaysia.
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D. Castro started manufacturing hydrogen bombs with the help of communist China.</span>
Answer:
Before this event, the United States had not declared war.
Explanation:
Each element has its unique properties, each contain a different number of protons and neutrons giving it its own atomic number and mass number
Explanation:
silver is (uncountable) a lustrous white metallic element, atomic number 47, atomic mass 10787 symbol ag while iron is (uncountable) a common. inexpensive metal often black in colour that rusts is attracted by magnets and used in making steel
