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aryanvir from lotus valley international school, haryana
Subject :NSO    Class : Class 8

Read the given statements and select the correct option.
Statement 1 : Mountaineers often encounter the problem of nose bleeding when they reach high altitudes.
Statement 2 : The blood pressure of their body becomes much less than the atmospheric pressure, making the blood vessels burst.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
CStatement 1 is true but statement 2 is false.
DBoth statements 1 and 2 are false.


c

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RASESH SHARMA from BAL BHARATI PUBLIC SCHOOL, NOIDA
Subject :NSO    Class : Class 7

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Dhairya Vinayak from Loyola High School, Patna
Subject :NSO    Class : Class 7

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
Ans c.. Fuse has only maximum limit

Ans 2:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
Ans c.. Fuse has only maximum limit

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Devina kashyap from TPS, Mumbai
Subject :NSO    Class : Class 5

Ans 1:

Devina kashyap from TPS, Mumbai
Class : Class 4
sulphur dioxide is a greenhouse gas infact it possess 100 year global warming potential than any other greenhouse gas and ozone is not a greenhouse gas so option C should be correct and not D

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SIDDHARTH SOMANI from Vibgyor High, Mumbai
Subject :NSO    Class : Class 3

A force can be either a push or pull. Which of the following classifications has been described INCORRECTLY?

Action Type of force Effect
A Flicking an insect that is flying towards you Push The force sends the flying insect in the opposite direction.
B Kicking a stationary pebble Push The force causes the pebble to roll away.
C Closing a car door from outside Pull The force moves the door.
D Stretching an elastic wristband Pull The force changes the shape of the wristband.

Ans 1:

Isha Bhattacharjee from Newtown School - Kolkata, KOLKATA
Class : Class 3
Option C. is described INCORRECTLY. Because here Type of force is Push not Pull, when the car door is closing from outside.

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vedant from TSRS Aravalli, Gurgaon
Subject :NSO    Class : Class 4

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Soham Biswas from null, null
Subject :NSO    Class : Class 7

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Avani Gupta from St. Mary's, Bhopal
Subject :NSO    Class : Class 10

Observe the given graph showing changes in endometrium in a female during her menstrual cycle and select the correct statement regarding P, Q, R and S.


ADuring phase P, secretion of FSH and estrogen increases, which develops the uterine lining.
B Phase R involves release of ovum from an ovary, marked by peak levels of LH and progesterone.
C In phase Q, relaxin hormone attains a peak and repairs endometrium of uterus.
D During phase S, progesterone is secreted from ovary and maintains thickness of endometrium.

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Dhairya Vinayak from Loyola High School, Patna
Subject :NSO    Class : Class 7

Refer to the given figure illustrating different types of pollination in plants. Rishi planted three different species of plants (X, Y and Z) in his garden whose seeds are dispersed by explosive mechanism. The given figure shows distribution of these plants in Rishi’s garden over a time period. Now, select the correct statement regarding it.


A X undergoes process P only whereas Y and Z undergo processes Q and R only.
B X could be a male plant of species undergoing only process R whereas Y and Z plants could undergo any of the processes P, Q or R depending upon the type of species.
C X is a plant undergoing only process Q so its population does not increase with time in the absence of other plant of the same species in the garden.
D Plants Y and Z are unisexual plants which can undergo only processes P and Q thereby assuring fertilisation and seed setting in absence of other plants of their species.

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
Ans. B is correct

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Dhairya Vinayak from Loyola High School, Patna
Subject :NSO    Class : Class 7

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