Answer:
Conduction is the transfer of thermal energy through direct contact. Convection is the transfer of thermal energy through the movement of a liquid or gas. Radiation is the transfer of thermal energy through thermal emission.
Answer:
A region on top of a mountain is cooler than at the base.
Explanation:
Pressure and temperature have direct relationship with each other. With the decrease in pressure, the temperature decreases and vice versa. When the air rises in the atmosphere, the pressure starts to fall. The low pressure at the peak of the mountains tends to cause the fall in temperature. It is because of this reason that it is cooler at the top of the mountain while the temperature is less cool in the foothills.
1) Decomposition reactions. In this type of reaction, a compound is broken down into simpler compounds.

Option B is a decomposition reaction
B) ____ KClO3 → ____ KCl + ____ O2
Answer:
The properties of the Hardness are:
Hardness is a physical property
Hardness is indicative of the strength of chemical bonds between elements.
Diamond can scratch quartz Explanation: