The correct answer is regression.
The child is regressing to a previous age when he used to wet the bed. He is now six years old, so he is supposed to be old enough not to wet the bed anymore, which was the case until his baby brother was born. Now the older child feels neglected and starts regressing to an earlier age in order to be noticed by his parents again.
The surface gravity of Neptune is 1.14 times the gravity on Earth. In other words, if you could actually walk on Neptune, you would feel only a little heavier than if you were walking on Earth. If you weighed 100 kg on Earth, you would weight 114 kg on Neptune. ... Neptune has much more mass than Earth.
I believe the answer is: conducting research to learn about the social world
The research in sociology is usually done in order to uncover whether a certain situation created by society affect the lives of the smaller social group. Rather than relying only on the words from authority, it reveal the perspective of all people involved starting from the bottom of society all the way to the power holders.
