It's so broad, it includes physics, chemistry and biology
Answer:
34
Explanation:
it's atomic number is the same as it's number if protons
The fuel that comes from decayed organisms is petroleum
Answer:
During a chemical change, the composition of matter always changes. Four possible clues to chemical change include a transfer of energy, a change in color, the production of a gas, or the formation of a precipitate.
Explanation:
