National Science Olympiad Forum By SOF Olympiad Trainer - Page 358
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Sarthak Jay Singh from Prudence, New Delhi
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

B

Rohit tried to push a wall but failed to do so. that means he applied some force in the wall, but the wall did not move. So, some energy is spent, but no work is done.


Post Your Answer

Elizabeth from Birla Public School, Doha
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

A

Shadows move during the day, and their length changes. They are longest in morning and evening. They are shortest at noon. So, Option A is the right answer.


Post Your Answer

Tirthaa Tripathy from DAV NTPC Kaniha, Angul
Subject :NSO    Class : Class 9

Post Your Answer

shivani from lodha world school palava, palava
Subject :NSO    Class : Class 5

Ans 1:

Anushka Sinha from Sushila Birla Girls School, Kolkata
Class : Class 8
nice question

Post Your Answer

Vidushi from DPS, BENGALURU
Subject :NSO    Class : Class 4

Ans 1:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
givesolution

Ans 2:

Emma Miriam George from Sophia High School, Bangalore
Class : Class 3
ok

Ans 3:

mishika tripathi from DPS, Gurugram, Haryana
Class : Class 5
no solution for this

Post Your Answer

Amruta Nasikkar from bgs nps, bangalore
Subject :NSO    Class : Class 7

Post Your Answer

Agriye Kamboj from ST.XAVIER SEC SE CO ed Bhopal, BHOPAL
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

D

Solution is the liquid mixture in which the minor component (the solute) is dissolved in the major component (the solvent). So, when Pinki made lemonade by dissolving lemon juice and little sugar in water, it means lemon juice and sugar are the solutes, Water is the solvent, and lemonade is the solution.


Ans 2:

Utkarsh Priyam from DSE, hyderabad
Class : Class 7

Ans 3:

vineet8026@gmail.com from dps, Doha
Class : Class 1

Post Your Answer

PARNIKA SINGH from GYAN GANGA EDUCATION ACADEMY, RAIPUR
Subject :NSO    Class : Class 7

Ans 1:

Shreya Sudarshan from RVK - Banashankari, Bengaluru
Class : Class 7
can a solution be given to the following problem ?

Ans 2:

SOMDATTA BHATTACHARYA from Delhi Public School, Dhaligaon, Bongaigaon
Class : Class 5

Post Your Answer

Yashvi bhatt from Iswki, Muscat
Subject :NSO    Class : Class 2

Post Your Answer

Riya Nambiar from The Sanskaar Valley School, Bhopal
Subject :NSO    Class : Class 5

Ans 1:

Bidyaghnya Banerjee from Vidyasagar Shishu Niketan, West Bengal
Class : Class 6
Though building dams are far higher risks to the environment, I think the answer is (B) i.e. dumping wastes. Land, water, soil and air pollution are primarily caused by illegal dumping. The harmful chemicals in the waste affect the physical environment and the waterways by contaminating groundwater and soil. Moreover, you didn't mention in the question, that dumping wastes mean dumping biodegradable wastes....

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

B


Post Your Answer