Answer:
Various aspects or branches of the study of human society, considered as an educational discipline.
Explanation:
Although the term “social studies” includes primarily history, geography, civics, economics, and sociology, it also deals with materials from other subjects. Thus some elements of ethics, psychology, philosophy, anthropology, art, literature, and other subjects are included in various courses in the social studies.
<u>Answer</u>:
Exo-system
<u>Explanation</u>:
Bronfenbrenner believed that personal development is affected by the surrounding environment. he has been divided the system into five levels:
The exo-system is the next level we can examine. This is the level where the participants not given an active role but even affect the people. This includes the decision that includes a decision that is the responsibility of a person. But they don't have participation in the decision-making process.
For example:
A child affected by parents receiving promotion at work or losing their job.
With respect to trade, caravan routes were linked to overseas trading networks, forming a great web for the transportation of good that knit together the "world economy" of the Islamic Empire.
Most foodstuffs contain natural, radioactive isotopes : TRUE.
- Radioactivity is, and always has been, present in all foodstuffs to some extent. Recent events have made the general public aware of this and most do not know about radioactivity and radiation.
There are four possible sources of radioactivity in foodstuffs: one natural and three artificial.
- Natural Radioactivity
- Industrial Radioactivity
- Weapons Testing
- 4. Accidents Involving Radioactivity:
Airborne radioactivity mainly consists of nuclides attached to dust particles which settle directly onto the ground or can be washed out by rain. Some radionuclides are gases and these are mainly washed out by rain.
Thus, both vegetation and soil can be contaminated, so radioactive elements remain their in foodstuffs.
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