National Science Olympiad Forum By SOF Olympiad Trainer - Page 525

User Forum

Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
tibia and fibula

Ans 2:

Class : Class 8
Tibia and Fibula(option C.)

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
Some dissolved salts in water is essential for human body and groundwater is free from suspended impurities but it contains soluble things, hence the option is C.

Ans 2:

Class : Class 9
Yes the option C is the correct as groundwater is not always safe

Ans 3:

Class : Class 6
groundwater sometimes have heavy metals such as lead and arsenic dissolved in them and hence is always not safe for drinking

Ans 4:

Class : Class 7
tf

Ans 5:

Class : Class 3
Let’s check whether the given statements are correct or incorrect:Statement 1: Groundwater is safe for drinking. ----- Correct.Statement 2: Groundwater is free from soluble impurities. ----- Correct.Groundwater is water that accumulates underground. Groundwater is safe for drinking because it is naturally filtered through layers of rocks and soil. So it is free from soluble impurities. That means Statement 1 is correct, and Statement 2 is the correct explanation of Statement 1.Hence, the right answer is Option A.

Ans 6:

Class : Class 8
Answer is option'D'. Neither of the statements are correct. And SOF World, Please listen to our comments and reply to it and rectify your mistakes quickly,ASAP. Iam not here to scold you, but trying to advise you. So please, from the heart of all the students who are commenting(including me), rectify all your mistakes ASAP( AS SOON AS POSSIBLE)!!!!!!!!!!!!

Ans 7:

Class : Class 3
Let’s check whether the given statements are correct or incorrect:Statement 1: Groundwater is safe for drinking. ----- Correct.Statement 2: Groundwater is free from soluble impurities. ----- Correct.Groundwater is water that accumulates underground. Groundwater is safe for drinking, because it is naturally filtered through layers of rocks and soil. So it is free from soluble impurities. That means Statement 1 is correct, and Statement 2 is the correct explanation of Statement 1.Hence, the right answer is Option A.

Ans 8:

Class : Class 7

Ans 9:

Class : Class 7
Ground water is not always safe, it can contain soluble impurities like arsenic

Ans 10:

Class : Class 9
No ground water has impurities, minerals, gases and some microbes dissolved in it

Ans 11:

Class : Class 6
Groundwater is safe for drinking but is not free of soluble impurities and that is why we boil it, so the correct option is (C)

Post Your Answer

Subject :NSO    Class : Class 2

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
Adithi Keshava from National Center For Excellence , BangaloreClass : >Class 5 13 days agoOption C

Ans 2:

Class : Class 7

Ans 3:

Class : Class 5

Ans 4:

Class : Class 5
Not C the answer is D

Ans 5:

Class : Class 7
Option C

Ans 6:

Class : Class 7
I HAVE NOOOOOOOOOOOOOO IDEA !!!!!!!!

Ans 7:

Class : Class 9
Sunita from Dps, Greater NoidaClass : >Class 5 about a minute agoAdithi Keshava from National Center For Excellence , BangaloreClass : >Class 5 13 days agoOption CAns 2:Adithi Keshava from National Center For Excellence , BangaloreClass : >Class 5 13 days agoOption C

Ans 8:

Class : Class 5
i got noooooooo idea

Ans 9:

Class : Class 4
Its C

Post Your Answer

Subject :NSO    Class : Class 5

Post Your Answer

Subject :NSO    Class : Class 1

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
Answer is B - Weaver bird.

Ans 2:

Class : Class 3

Ans 3:

Class : Class 5
BB

Ans 4:

Class : Class 4
the answer is (B) weaver bird.

Ans 5:

Class : Class 3
B Weaver Bird

Ans 6:

Class : Class 7
its [C] tailor bird

Ans 7:

Class : Class 5

Ans 8:

Class : Class 8
B weaver birds

Post Your Answer

Subject :NSO    Class : Class 3

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5

Ans 2:

Class : Class 6
Explaaaaaaaaaaaaaaaaaaaaaaiiiiiiiiiiiiiiiiiiiiiin

Ans 3:

Class : Class 5
ANSWER IS (a)

Ans 4:

Class : Class 4
PLEASE EXPLAIN

Post Your Answer

Subject :NSO    Class : Class 8

Post Your Answer