36. Which among the following is not a type of human tooth?
(a) Molar
(b) Canine
(c) Premolar
(d) Incision
Answer:
(d) Incision
Explanation:
The four main types of human teeth are incisors, canines, premolars, and molars. “Incision” is a surgical cut, whereas the tooth is called an “incisor”.
37. Chewing food properly in mouth helps in?
(a) Swallowing
(b) Vomiting
(c) Packaging
(d) Preserving
Answer:
(a) Swallowing
Explanation:
Chewing (mastication) breaks down food into smaller pieces and mixes it with saliva, forming a bolus that is much easier and safer to swallow and digest.
38. Which among the following makes white roof keep the roof cool?
(a) white roof reflects sun’s heat
(b) white roof absorbs sun’s heat
(c) white roof soaks up sun’s heat
(d) white roof embraces sun’s heat
Answer:
(a) white roof reflects sun’s heat
Explanation:
White surfaces possess high albedo, meaning they reflect a large portion of the sun’s visible light and radiant heat back into the atmosphere, keeping the building below cooler.
39. Republic Day in India is celebrated on which day?
(a) 26th January
(b) 02nd October
(c) 15th August
(d) 05th September
Answer:
(a) 26th January
Explanation:
India celebrates Republic Day on the 26th of January every year, marking the date in 1950 when the Constitution of India formally came into effect.
40. Which among the following is not a part of Indian Defence Force?
(a) Army
(b) Air Force
(c) State Police
(d) Navy
Answer:
(c) State Police
Explanation:
The Indian Armed Forces consist of the Army, Navy, and Air Force under the Ministry of Defence. State Police forces operate under individual state governments to maintain internal law and order.
