Deena, a research student, decides to test the proverb "birds of a feather flock together" as part of her research project. in this scenario, is most likely to be the initial source of deena's idea. practical problems past research scientific theory common sense

The answer is "common sense".

The initial source has to be common sense as idioms are usually metaphorical statements which make sense and relate to the common life.

In nature, birds of a solitary group do in actuality regularly frame groups. Ornithologists clarify this conduct as a 'security in numbers' strategy to diminish the danger of predation. In dialect terms, it was beforehand more typical to allude to birds flying together than flocking together and numerous early references utilize that frame.

every society, in order to meet the needs of it's people, has to answer three basic questions:

- what should we produce?

- how should we produce it?

- for whom should we produce it?

this questions must be answered in order to, option b, aid in production decisions.

every country can't produce everything, no matter how rich their land is. it may be a matter of technology, resources or geographical conditions. so, these three questions must be resolved in order to get the most of the production of each land.

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there are indirect ways of affecting state laws   by with holding funding's. and that's why we have a 55mph speed on the high way with a design of 70mph speed.