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from St. Stephen's School, Kolkata
Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

A


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Bhavya Jha from Global City International School, Bangalore, Karnataka, India
Subject :NSO    Class : Class 7

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
No, you should refer to the starting point of the graph.. The temperature at the beginning is also important.. So the right answer is option B

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AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Subject :NSO    Class : Class 7

Ans 1:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 7
C IS CORRECT ANSWER

Ans 2:

Aadya mishra from SoI, Bangalore
Class : Class 7

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Morom from DPS numaligarh, Golaghat
Subject :NSO    Class : Class 6

Ans 1:

Vasu tyagi from St Joseph's High school, Panvel
Class : Class 6
His image will form at 6m away from him because the distance between him and mirror is 3m so the image will form at 3m away from mirror .So the distance between him and mirror is 6m.

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Mahadevan from KV Rubber Board Kottayam, Kottayam
Subject :NSO    Class : Class 5

Raju, a farmer got his field checked for soil toxicity. The report showed high level of toxic chemicals in his field. How can these toxic chemicals in the soil be harmful?

AThey may enter any nearby waterbody due to runoff and cause algal bloom.
BThey are absorbed by food plants growing in the soil making them unfit for consumption.
CThey may get evaporated in the air causing air pollution.
DBoth A and B


Answer is B not D

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

D

If these toxic chemicals enter the nearby waterbodies, they cause the microalgae population in the water-body to grow uncontrollably, causing algal bloom. These algae lower the oxygen levels in the water and cause harm to aquatic life. Toxic chemicals mixed with soil and water are absorbed by food plants and they become unfit for consumption. Toxic chemicals in the soil will cause soil pollution and water pollution. They will not cause air pollution.

 


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AARNA Kapse from The swaminarayan school, Nagpur
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

D

Reusing old cans, bottles and newspapers means you won’t be buying new ones from market. This will help to conserve natural resources that are used for making new cans, bottles and newspapers. So, this will help to control environmental pollution.


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Pradhyumna K from SRI BHUVANENDRA RESIDENTIAL SCHOOL, Karkala
Subject :NSO    Class : Class 8

Ans 1:

ANUSHKA SHARMA from CAMBRIDGE COURT WORLD SCHOOL, JAIPUR
Class : Class 8
Testes which is the primary sex organ in male reproductive system, produces the male gamete sperm as well as male hormone Testosterone

Ans 2:

Pradhyumna K from SRI BHUVANENDRA RESIDENTIAL SCHOOL, Karkala
Class : Class 8
Testes

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Riddhiman Bose from Don Bosco School, Kolkata
Subject :NSO    Class : Class 5

Ans 1:

Ankita Dave from GNS, Bangalore
Class : Class 4
D is the answer to this question

Ans 2:

Koustavi Chakraborty from DELHI PUBLIC SCHOOL, PUNE
Class : Class 5
correct answer isd

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

D

Ploughing the field(d)→Adding fertilisers to the field(b)→Sowing the seeds(e)→Irrigation of crops(a)→Spraying pesticides(c)


Ans 4:

Biju Pappachan from Rkc , Raipur
Class : Class 1
I would have known the answer if there was a clearer pic

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Aarav Srivastav from DWPS , Noida Extension
Subject :NSO    Class : Class 6

Ans 1:

Vasu tyagi from St Joseph's High school, Panvel
Class : Class 6
Answer is C .Because Vitamin D is formed in our body due to exposure to sunlight through colestrol so option A is right .deficiency of vitamin D and calcium causes rickets .calcium is present in milk but not sometimes in its products .so the correct answer is C

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shawn pal from DPS Gandhinagar, AHMEDABAD
Subject :NSO    Class : Class 8

Ans 1:

ANUSHKA SHARMA from CAMBRIDGE COURT WORLD SCHOOL, JAIPUR
Class : Class 8
The answer is (b) According to Kepler's second law, the angular momentum of the planet is constant. The angular momentum of the planet does not vary, i.e. the aerial velocity of the planet remains constant.

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