Answer:
The statement is False
Explanation:
Radiation is the emission of energy as electromagnetic waves or especially high-energy particles which cause ionization. It is not necessary that the source of heat must be a liquid. Most of the time radiation is produced from a solid substance which burns with a high amount of temperature. That temperature is transferred to the surroundings in the form of electromagnetic waves and they do not require any medium to propagate.
A. They will gather more evidence before reaching a conclusion.
At room temperature and normal atmospheric pressure, covalent compounds may exist as a solid, a liquid, or a gas, whereas ionic compounds exist only as solids, Ionic compounds exist in stable crystalline structures. Therefore, they have higher melting and boiling points compared to covalent compounds.
Lytic Cycle Hope this helps! :D