When a star becomes a singularity and has zero volume and infinite density, it is called_______________...? Mcqs

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When a star becomes a singularity and has zero volume and infinite density, it is called_______________...?

(A) White dwarf
(B) Blue giant

(C) Wolf-Raynet star
(D) Black hole

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Matter can change from one form into another by...?

(A) Heating
(B) Cooling

(C) Both A and B
(D) None

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About 50% of the Earth’s crust, including the waters on the Earth and atmosphere, is...?

(A) Oxygen
(B) Cabon Dioxide

(C) Silicon
(D) Clay

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What is the most significant environmental risk associated with hazardous waste...?

(A) Increased use of land for landfills
(B) Destruction of Habitat

(C) Air pollution
(D) Contamination of Ground water

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Plant cell loses water and cytoplasm shrinks in a process called...?

(A) Osmosis
(B) Deplasmolysis

(C) Cytolysis
(D) Plasmolysis

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Stimulus is detected by ______...?

(A) Receptor
(B) Effector

(C) Nerve
(D) All of these

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A healthy child 7-14 years of age, required approximately _______ gram of protein per kilogram of body weight....?

(A) 1
(B) 2

(C) 3
(D) 4

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Comets are often called what...?

(A) Dusty snowballs
(B) Filthy snowballs

(C) Dirty snowballs
(D) Impure snowballs

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Ohm's law is not applicable to ______...?

(A) D.C. circuits
(B) Small resistors

(C) High currents
(D) Semiconductors

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Which of the following is a region of the solar system even farther out than the Kuiper belt...?

(A) The Gort cloud
(B) The Oort cloud

(C) The Fort cloud
(D) The Nort cloud

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