Which one of the following is not a sign of chemical change...? Mcqs

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Which one of the following is not a sign of chemical change...?

(A) No change in composition
(B) A release of gas

(C) Change in colour, temperature, smell
(D) Production of a new material

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Which mineral is makes red blood cells and it involved in oxygen transport and storage for energy conversions...?

(A) Magnesium
(B) Sodium

(C) Copper
(D) Iron

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Which of the following animal is secondary consumer...?

(A) Dog
(B) Cat

(C) Cow
(D) Both A and B

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Animals with backbone are called...?

(A) Vertebrates
(B) Invertebrates

(C) Both A and B
(D) None

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The day and night are formed due to 'Earth' rotation on its own axis from...?

(A) North to South
(B) South to North

(C) East to West
(D) West to East

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When oil and gas resources are burnt they kill many forests and lakes by ________________ ...?

(A) deforestation
(B) water pollution

(C) acid rain
(D) forest fire

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According to Big Bang Theory, the Universe began about __________ billion years ago....?

(A) 10 – 20
(B) 20 – 30

(C) 30 – 40
(D) 40 – 50

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A soldier drove eastward for 4 miles then drove North for 5 miles then turned to his left and drove for 1 mile and again turned to his left. Which choice gives the direction in which he was driving now....?

(A) South
(B) West

(C) North
(D) East

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Red-green colour blindness in a man is known as:...?

(A) Prolanopia
(B) Deuteranopia

(C) both a&b
(D) Marfan’s syndrome

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The Earth behaves like a magnet with ______ poles...?

(A) Four
(B) Three

(C) Two
(D) None of these

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