Some children are able to acknowledge that friendship involves give-and-take. However, these children often still see friendship as mutually serving individual interests rather than mutually cooperating toward a common interest. These traits are characteristic of

Characteristics of Children in the middle childhood years.

Explanation:

Middle childhood typically starts from 6-8 years  and  brings about different changes in a child’s life. Children start to become independent and they start to understand what school is which helps them  at this age to improve contact with the outer world than their family. Having independence from family becomes more important now and they start to develop Friendships which to them means a form of acceptance and a basis for interaction to develop confidence in all areas of life and these can be carried out in  school work and participatory games.

They generally view friendship in terms of  teamwork especially and not the purpose of what can be gained from the friendship (ie give and take).

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.