National Science Olympiad Forum By SOF Olympiad Trainer - Page 340

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Subject :NSO    Class : Class 2

Ans 1: (Master Answer)

Class : Class 1

D

All insects lay eggs and have six legs. Head louse (D) is a wingless insect. So it cannot fly. Mosquito (B) and housefly (C) are winged insects so they can fly. Spider (A) is not an insect. It has eight legs. It does not have wings so it also cannot fly.


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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

B

A. This beak is strong and curved. Parrots have such beaks. It allows them to crack nuts, bite hard fruits and grip barks and branches of trees.
B. This beak is long, thin and tubular. Humming birds have such beaks. These beaks can be inserted into the narrow center portion of the flowers and birds can drink nectar through them.
C. This beak is broad and flat with holes. Ducks have such beaks. Ducks in ponds gulp water in these beaks, they keep the aquatic plants, fish and insects inside the beak, while water seeps out the tiny holes present in the beak.
D. This beak is strong, sharp and hooked. Eagles have such beaks. It allows them to tear off and eat the flesh of the prey.
Hence, the right answer is option B.


Ans 2:

Class : Class 3
b

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1

A

In the given food chain grass is eaten by grasshopper. Grasshoppers are eaten by frogs; Frogs are eaten by snakes, and snakes are eaten by peacocks. If frog is completely removed from the given food chain, then no-one will eat the grasshopper, so the population of grasshoppers will increase.Since frog is completely removed, Snakes will not have enough food to eat, so population of snakes will decline. Hence b and d are correct and option A is the right answer.


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Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

Class : Class 1

B


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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
it is option 4

Ans 2:

Class : Class 5
b

Ans 3:

Class : Class 7
Samriddhi from Foundation Academy, Patna Class: 7 Option: C

Ans 4:

Class : Class 5
c

Ans 5:

Class : Class 7
Samriddhi from Foundation Academy , Patna class: 7 Option : C

Ans 6:

Class : Class 5
b

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Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Class : Class 1

D

Linen is made from the cellulose fibres that grow inside of the stalks of the flax plant. Neem leaves are used to protect woollen clothes from insects.


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Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Class : Class 1

C


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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
Yes! ofcourse!

Ans 2: (Master Answer)

Class : Class 1

The correct answer is option B.


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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
correct answer is D

Ans 2:

Class : Class 5

Ans 3:

Class : Class 4

Ans 4:

Class : Class 5
Pizza is always baked in a oven because for a better taste.

Ans 5:

Class : Class 6
Baking

Ans 6:

Class : Class 4
AANYA MEHTA CLASS : 4 GMA ANSWER SHOULD BE D BAKED .

Ans 7:

Class : Class 5
Idli is steamed to make it softer

Ans 8:

Class : Class 7
Pizza is neither steamed like idli nor fried like puris. It is also not boiled but, it is baked in an oven or microwave.

Ans 9:

Class : Class 4
I thought it was a boiled egg so I selected boiling, it was idli

Ans 10:

Class : Class 7
yes it is bake

Ans 11:

Class : Class 4
I thought the same as

Ans 12:

Class : Class 7
I thought it was an omelette so I selected frying but later I saw it was a pizza, If they could have written pizza, I would have surely selected baking.

Ans 13:

Class : Class 7

Ans 14:

Class : Class 7

Ans 15:

Class : Class 9

Ans 16:

Class : Class 3
yup its baking

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1

D


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