Answer:
the answers are 1,2 and 4
The correct answer is belief perseverance.
Perseverance is a quality of those who persist, who are consistent in their actions and do not give up in the face of difficulties.
To persevere is to achieve your goals due to the fact of staying firm and faithful to your ideas and purposes.
Explanation:
to make their lives easier and more efficient
The psychological process called association
The freezing point for celsius is 0 if that's what you're asking.
