First one, third one, and fourth
Answer:
This is an example of conservation.
Explanation:
Conservation is one of Jean Piaget's developmental accomplishments, in which a child understands that changing the form of a substance or object does not change its amount, volume, or mass. This is typically accomplished between the operational stage of development around ages 7 to 11. Therefore, it is typical for 4-year-olds to not be able to comprehend the concept of conservation.
Answer:
the answer is number 2 division of labor
<span>Human factors psychology is the study of how workers interact with the tools of work and how to design those tools to optimize workers' productivity, safety, and health.Such psychologists study how people interact with machines and technology.Tjey use psychical science to guide the design of products, systems and devices.</span>
<h2>Answer:</h2>
d. The amount of cash he wants
<h2>Explanation:</h2>
If Nick is making a deposit with a check and he wants his money back then off course he must write the amount of money that he needs. The other things such as has his name, his account number, the date, the amount of the check, his signature, the total deposit amount are also necessary but the amount that he needs is mandatory in order to get his money back.
