Which of the following is helpful for removal of permanent hardness...? Mcqs

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Which of the following is helpful for removal of permanent hardness...?

(A) Na2CO3
(B) Ca(OH)2

(C) CaCO2
(D) Na2SO4

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Plants make their own food using...?

(A) CO2 & water
(B) Sunlight

(C) Chlorophyll
(D) Photosynthesis

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Which of the following are primary consumers that eat plants and plant products...?

(A) Lions and Wolves
(B) Sheep and Birds

(C) Hawks and Snakes
(D) Bears and Humans

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Larva of butterfly is also called...?

(A) Eggs
(B) Caterpillar

(C) Pupa
(D) Adult

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Which region of the Moon is known as Dark side...?

(A) Equator
(B) South Pole

(C) North Pole
(D) None of these

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Sodium Carbonate is commonly called ________...?

(A) Plaster of Paris
(B) Washing Soda

(C) Common Salt
(D) None of these

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Cause of Malaria is ________...?

(A) Dirty environment
(B) Pollution

(C) Mosquito
(D) None of above

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Pumping of blood by the rhythmic pulsation of heart throughout the body is called...?

(A) Blood pressure
(B) Circulation

(C) Pulse
(D) Heart beat

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What time of day do most owls hunt...?

(A) Morning
(B) Afternoon

(C) Evening
(D) Night

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Lunar eclipse occurs on__________...?

(A) New Moon
(B) Full Moon

(C) Half Moon
(D) Quarter Moon

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