GENERAL KNOWLEDGE QUIZ-science 1

                                NCERT 6 TH CLASS QUIZ FOR EXAM ASPIRANT 
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ANSWER THE FALLOWING QUESTION (1-5)
(1) Deficiency of Vitamin D causes
(a) Rickets
(b) Scurvy
(c) Beriberi

(2) Deficiency of which vitamin causes  disease known as beri-beri.
(a) Vitamin A
(b) Vitamin B1
(c) Vitamin C

(3) Deficiency of Vitamin C causes a disease known as
​(a) Scurvy
(b) Rickets
(c) Beriberi
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(4) Night blindness is caused due to deficiency of in our food
(a) Vitamin A
(b) Vitamin C
(c) Vitamin D

(5) Anaemia is caused due to deficiency of
(a) Iodine
(b) Calcium
(c) Iron

EXPLANATION(1-5)

Q.1) Answer(a)
Deficiency of Vitamin D causes Rickets disease and cause Bones  soft and bent.Vitamin D helps our body to use calcium for bones and teeth.

Q.2) Answer(b)
Deficiency of vitamin B1 causes  disease beri-beri.with suffering from these disease symptoms appears as Weak muscles and very little energy to work

Q.3) Answer(a)
Deficiency of Vitamin C causes a disease known as Scurvy

Q.4) Answer(a)
Deficiency of Vitamin A causes a disease known as Night blindness.the symptoms are  Poor vision, loss of
vision in darkness (night), sometimes complete loss of vision​

Q.5) Answer(c)
​with deficiency of Iron causes Anaemia

ANSWER THE FALLOWING QUESTION (6-10)
(6) The bones at the elbow are joined by which type of  joint
(a) Hinges joint
(b) Pivot joint
(c) ball and socket joint

(7) The presence of specific features, which enable a plant or an animal to live in a particular habitat, is called
(a) adaptation
(b) terrestrial habitats
(c) habitat

(8) The habitats of the plants and animals that live on land are called
(a) terrestrial habitats
(b) aquatic habitats
(c) None of the above

(9) The habitats of plants and animals that live in water are called
(a) terrestrial habitats
(b) aquatic habitats
(c) None of the above

(10) How many  terminals are there in electric cell 
(a) one
(b) Two
(c) Three

EXPLANATION(6-10)

Q.6) Answer(c)
ball and socket joint

Q.7) Answer(a)
The presence of specific features or certain habits, which enable a plant or an animal to live in its surroundings, is called adaptation. Different animals are adapted to their surroundings in different ways.

Q.8) Answer(a)
The surroundings where organisms live is called a habitat. The organisms depend for their food, water, air, shelter and other needs on their habitat. Habitat means a dwelling place (a home). Several kinds of plants and animals may share the same habitat.The plants and animals that live on land are said to live in terrestrial habitats. Some examples of terrestrial habitats are forests, grasslands, deserts, coastal and mountain regions.

Q.9) Answer(b)
the habitats of plants and animals that live in water are called aquatic habitats. Ponds, swamps, lakes, rivers and oceans are some examples of aquatic habitats.

Q.10) Answer(b)
An electric cell has two terminals; one is called positive (+ ve) while the other is negative (– ve).the two terminals of the electric cell were connected to two terminals of the bulb. Such an arrangement is an example of an electric circuit. The electric circuit provides a complete path for electricity to pass (current to flow) between the two terminals of the electric cell. The bulb glows only when current flows through the circuit.

ANSWER THE FALLOWING QUESTION (11-15)
(11) The process of changing of water into its vapour is called
(a) evaporation
(b) transpiration
(c) Condesation

(12) The process of changing water vapour into water is called
(a) evaporation
(b) transpiration
(c) Condensation

(13) The layer of air around the earth is known as
​(a) Atmosphere
(b) Tropospher
(c) Stratosphere
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(14) Which  gas in the earth's atmosphere constitutes major portion
(a) Oxyzen
(b) Carbondioxide
(c) Nitrogen

(15) Which toxic element present in automobile exhausts
(a) Iodine
(b) Lead
(c) Iron

EXPLANATION(11-15)

Q.11) Answer(a) 
Water vapour enters the air through the processes of evaporation.water in the form of vapour goes into air by evaporation  forms clouds.

Q.12) Answer(c) 
The process of condensation plays an important role in bringing water back to the surface of earth.When the air moves up, it gets cooler and cooler. At sufficient heights, the air becomes so cool that the water vapour present in it condenses to form tiny drops of water called droplets.

Q.13) Answer(a) 
Our earth is surrounded by a thin layer of air. This layer extends up to many kilometres above the surface of the earth and is called atmosphere.

Q.14) Answer(c) 
By volume air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases.

Q.15) Answer(b)
​Lead