<u>Answer:</u>
<em>Anytime observations need to be clarified. When an unusual condition need to be shown for later reference.</em>
<u>Explanation:</u>
Instead of just recording the data the is sometimes important to be sketched out as the data observed is needed to be clarified and also sometimes there is an unusual condition that occurs and hence, it is important to sketch it so that it can be used for later reference.
<em>Therefore, when we are aware of the situation we need not sketch the data.</em>
Answer:
B. Nation
Explanation:
B is the best answer here because culture, nationality, history, and ethnicity are all directly tied to one's country (nation). Territory and boundary are not as specific, and state is too narrow.
China is a Communist Economy
My story would be on the way to the core of the earth they pass the sial, upper crust,lower crust, they smell Radium, stenches of landfill. Layers of the earth are Upper crust, lower crust, lithosphere,asthenosphere, mantle, outer core, and inner core.