I dont know what subject is this
Answer:
A hypothesis is a possible explanation for a set of observations or an answer to a scientific question. A hypothesis must be testable and measurable.
Explanation:
Answer:
false
Explanation:
because elements never exist in nature as single isotopes they are always combined
<span>plasmas that reach a temperature equal to their surroundings
----------------------=0uyjgyhjngytfgbhtfgbdc b gdf gb </span>