A collective is a group of entities that share or are motivated by at least one common issue or interest, or work together to achieve a common objective.
In fluids, heat is often transferred by convection, in which the motion of the fluid itself carries heat from one place to another. Another way to transfer heat is by conduction, which does not involve any motion of a substance, but rather is a transfer of energy within a substance (or between substances in contact).
B. False,D. Values hope this helps!
True.
Since scarcity is the basic economic problem, without scarcity there would be no need to study economics. Scarcity means when a particular commodity is not enough to satisfy human wants completely. So, if scarcity doesn't exist, it'll mean that everyone's wants will be fulfilled, hence the need to study economics will not be there.
True! It is evaluating something to form a judgement.
