The main culprit of greenhouse effect is Carbon dioxide. But which is the second element contributing most to greenhouse effect...? Mcqs

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The main culprit of greenhouse effect is Carbon dioxide. But which is the second element contributing most to greenhouse effect...?

(A) Nitrogen Dioxide (NO2)
(B) Chlorofluorocarbons (CFCs)

(C) Methane (CH4)
(D) High-fructose corn syrup (HFCs)

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The gradual physiological adjustment to slowly changing new environmental conditions is known as _____________________...?

(A) Selection
(B) Introduction

(C) Acclimatization
(D) Quarantine

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A pulsar is a rapidly spinning neutron star which emits:...?

(A) A blinding light when it aligns with the planets
(B) Radio waves detectable from Earth

(C) A gravitational pull which attracts high energy dust particles
(D) Enough energy to power itself indefinitely

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The scientific study of fingerprints is called _________ ...?

(A) Dactylography
(B) Dactylology

(C) Dactyliology
(D) Dialectology

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In human the Y chromosome is passed to next generation from...?

(A) Father to son
(B) Mother to son

(C) Father to daughter
(D) Mother to daughter

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If the length of a heater coil is reduced by 10% of its original length, then Power consumed by heater will...?

(A) Increase over 10%
(B) Decrease by 10%

(C) Decrease by 0.5%
(D) Increase by 0.5%

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Silicon is an example of ______...?

(A) Conductor
(B) Insulator

(C) Resistor
(D) Semiconductor

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The α-radiation is _______...?

(A) A stream of fast-moving electrons
(B) A form of electromagnetic radiation

(C) Highly ionizing than γ-radiation
(D) More penetrating than β-radiation

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Bond which involve 3 shared electron pairs is a ______...?

(A) Double covalent bond
(B) Single covalent bond

(C) Triple covalent bond
(D) None of above

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Salt among following is ______...?

(A) HCl
(B) KCl

(C) HNO3
(D) H2SO4

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