Transistor is a device that convert weak signal into__________...? Mcqs

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Transistor is a device that convert weak signal into__________...?

(A) small signal
(B) strong signal

(C) both
(D) none

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Part of agriculture for the development of new varieties of plant, and their fruit is _____...?

(A) Agronomy
(B) Floriculture

(C) Horticulture
(D) Pomology

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In modern periodic table, how many groups are there...?

(A) 12
(B) 18

(C) 7
(D) 8

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______ soil is also called Regur soil...?

(A) Desert
(B) Mountain

(C) Black
(D) Alluvial

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Bees must collect nectar from approximately how many flowers to make 1 pound of Honeycomb....?

(A) 20 million
(B) 1 million

(C) 5 million
(D) None of these

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All are characters of enzymes except...?

(A) Enzyme speed up a biochemical reaction
(B) Enzymes are sensitive to minor change in pH

(C) Enzyme activity enhanced by inhibitors
(D) Enzyme portion where substrate attach called active site

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The type of coordination through electrochemical signals is _______...?

(A) Nervous
(B) Chemical

(C) Mechanical
(D) All of these

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Atoms which lose electrons will become positively charged ion and they are known as...?

(A) Anions
(B) Ions

(C) Cations
(D) Isotopes

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The human brain uses__________ percent of the total oxygen and blood in the body...?

(A) 20
(B) 12

(C) 35
(D) 48

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Root hairs are most important to a plant because they ______...?

(A) Store starch
(B) Contain xylem tissues

(C) Provide a habitat for nitrogen fixing bacteria
(D) Increase the surface area for absorption

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