The function of a trap
ATo provide adequate water seal
BTo prevent the entry of foul gas
CTo allow the sewage flow without foul gas
DAll the above
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സാമൂഹികപഠനം എന്ന സിദ്ധാന്തം ആവിഷ്കരിച്ച മനഃശാസ്ത്രജ്ഞൻ ആര് ?
Directions: One statement is given, followed by two conclusions, I and II. You have to consider the statement to be true, even if it seems to be at variance from commonly known facts. You are to decide which of the given conclusions can be definitely drawn from the given statement.
Statement: Polaris is the brightest star in the Ursa Minor constellation.
Conclusions:
I. Polaris is brighter than any other star in the sky.
II. There are only a few bright stars in the constellation.