The audible range of normal dolphin ear is ____...? Mcqs

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The audible range of normal dolphin ear is ____...?

(A) 20 Hz to 120 kHz
(B) 20 Hz to 20 kHz

(C) 20 Hz to 100 kHz
(D) 20 Hz to 50 KHz

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Pressure in gases is due to _____...?

(A) Collision of molecules with walls of containers
(B) Vibration of molecules

(C) Rotation of molecules
(D) Electromagnetic attraction between molecules

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Which processes involve mitosis...?

(A) Growth, reduction division and asexual reproduction
(B) Growth, repair and asexual reproduction

(C) Growth, repair and semiconservative replication
(D) Growth, reduction division and repair

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What is the average weight of Human Heart...?

(A) 300 gram
(B) 350 gram

(C) 400 gram
(D) 450 gram

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Human population growth is greatest in developing countries because ...?

(A) the birth rate is high in developing countries
(B) the death rate is high in developing countries.

(C) much of the population has already reached the child bearing age.
(D) most of the world’s population lives in industrialized countries.

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Honey contain glucose and fructose along with some other ingredients, it has greater viscosity due to____________...?

(A) hydrogen bonding
(B) irregular shape of the molecules

(C) irregular shape of the molecules and strong inter-molecular forces
(D) greater molecular size

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The greater the speed of gas particles in a container, the ____...?

(A) Lower the pressure
(B) Greater the pressure

(C) No effect on pressure
(D) Constant pressure

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The two elements that are frequently used for making transistors are :...?

(A) Boron and aluminium
(B) Silicon and Germanium

(C) Iridium and Tungston
(D) None of these

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What is the Unit of Force...?

(A) Newton
(B) Joule

(C) Watt
(D) Metre

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Human bone does not contain_________...?

(A) Calcium
(B) Chondroitin sulfate

(C) Boron
(D) phosphate

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