141. The fruits without seed, like banana, are called…………….?
answer
Parthenocarpic fruits
142. Animal which captures and readily kills living animals for its food is called……………?
answer
Predators
143. In a railway track, two rails are joined end to end with a gap tin between them because?
answer
Accidents due to expansion in summer can be avoided
144. Name the famous book of lbn-Sina in which he discussed human physiology and medicine?
answer
Al-Qanun
145. In a kettle, water is warmed. Convection heats the water inside. A person seated close to the fire is heated by what?
answer
Radiation
146. In winter an iron pipe feel colder than a wooden window. This is because wood is…………..?
answer
Non-Conductor
147. In order to clearly hear the echo (reflected sound), the distance between the reflecting surfaces and the sound source must be at least.
answer
56ft
148. It is possible to recognize a person in the dark by simply hearing his unique voice. It is because of The ………..?
answer
Pitch
149. Dust particles suspended in the air make a light beam’s straight course visible when it enters a dark space. Because light is, why is that?
answer
Visible
150. A woman who is six feet tall wants to view her entire reflection in a plane mirror. What will the mirror’s bare minimum length be?
answer
3 feet
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