alleryOpposed doorways in old barns helped winnowing by creating what?
AA shadow
BA hot spot
CA damp floor
DA draught
Answer & Solution
Correct answer: D. A draught
1. Recall the idea: Opposite doors made a draught of air that blew the chaff away.
2. The correct choice is: A draught.
3. The other options describe different methods or properties and do not fit this fact.
_Source: Wikipedia, Winnowing_
Keep practising Filtration
Browse all Filtration questions for CTET, or explore more Science topics.
Related questions
Diatomaceous earth used as a filter aid is mainly what?Centrifugation helps separate which solids that filter poorly?Cooling a solution in an ice bath gives what kind of crystals?Hot filtration is used to prevent what in the funnel?Which animal is described as a filter feeder?Slow sand filters are used for treating what?What does renal filtration do in the human body?Activated carbon in industrial filters is used to change what?