1st answer :- The two main methods of mineral formation are cooling and evaporation.
Answer:
false
in chemical reaction element doesnot change into another
Explanation:
Answer: Option (d) is the correct answer.
Explanation:
Endothermic process is a process in which energy or heat is absorbed by reactant species.
For example, melting of ice cubes is an endothermic process as it is absorbing heat from the surrounding and gives a cooling effect.
Thus, we can conclude that the process in which a substance gains energy is an endothermic process.
