What is the key difference between being impurified by Diaspora earth vs. Diaspora airspace?
Halacha 2: Diaspora earth impurity is the stronger level — it requires seven-day purification and terumah/sacrificial food is burned. Airspace impurity only requires immersion until evening, and terumah is held in abeyance (not burned).
Question 2
How long must gentiles reside in a dwelling for it to require inspection?
Halacha 8: 40 days is the threshold — the time sufficient for a woman to conceive and miscarry a fetus that conveys impurity. Even a man living alone triggers this decree (Rabbinic safeguard).
Question 3
Is Syria's airspace impure like other Diaspora areas?
Halacha 6: Syria's earth is impure like the Diaspora, but the Sages did not decree impurity on Syria's airspace. One can enter Syria in a cabinet (airspace only) and remain pure as long as they don't touch the earth.
Question 4
A Jewish woman lived in a gentile building monitoring for burials. Does this building require inspection?
Halacha 9: A Jewish servant, woman, or minor of nine who guarded a gentile dwelling prevents the need for inspection — they would have prevented any secret burial of a fetus.
Question 5
Does the gentile dwelling decree apply to a soldiers' barracks?
Halacha 10: Soldiers' barracks are one of the ten types of places exempt from the gentile dwelling decree — temporary military quarters do not constitute permanent habitation.