The correct answer is a nuclear family.
A nuclear family refers to a family type that comprises of a couple (the parents) and their dependent children. This family type does not include grandparents, uncles, aunts, etc., living together with the nuclear family. The nuclear family structure became increasingly popular and common after industrialization and modernization in society. Prior to industrialization, extended or multi-generational families were more common.
Answer: <u>Substantial , Permanent</u>
Explanation:
According to the research conducted by Renée Baillargeon, infant tends to display the concept of object permanence when experiments were conducted with them. Infants cognition ability was studied which resulted in surprise on infants action.
Infants tends to look on object or situation that are considered impossible event for longer amount of time .Infants tend to be surprised because impossible event violated the expected objects behavior or action. Thus, they expect object as considerable or substantial and that it would exist even if they cannot be seen or sensed as per object permanence concept.
Answer:The courier was the person in charge to carry and delivery letters to very rich people.
Explanation:
At the Renaissance age did not exist the postal service that we know today. however, very rich people could access to this service by hiring a courier. He could deliver them very quickly, They were usually used by the town councils tso they could keep communication with different countries such as Italy, Germany, French, among others.
Answer:
Multiplication or division by a power of ten = 
Example:
m --->km
1 -divide the length value by 1000--> 0.001