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Subject :NSO    Class : Class 7

Three test tubes are set up as shown. The indicator used here changes from red to yellow when exposed to increased levels of carbon dioxide. At the start of the experiment, the indicator in each test tube was red.


What will be the colour of the indicator in each test tube after two hours?

a b c
A Yellow Yellow Red
B Red Yellow Red
C Yellow Red Red
D Yellow Yellow Yellow


Please explain how the test tube with insects will turn yellow.

Ans 1:

Class : Class 9
Ciao a tutti vengo dall'italia

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Class : Class 8
lo sono indiano

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Class : Class 7
i am from Italy hello. Can you help me translate? /rardor

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Class : Class 7
this is because the leaf produces oxygen during photosyntesis when exposed to sunlight

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Class : Class 10
hello everyone thanks for approve

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 7
HI, If you unscramble SECIIUDOL it gives DELICIOUS. Thanks, Anamkhan

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 2
D

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Class : Class 2
bear is a plant eater and animal eater,,bear eats fish and instects

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
ans:none of these 365 days 6 hours

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Subject :NSO    Class : Class 6

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Class : Class 6
Rectilinear

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Class : Class 7

Ans 3:

Class : Class 6
OSCILLATORY

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Class : Class 6
Rectilinear

Ans 5:

Class : Class 6
It will be D only because the pendulum is the best example for oscillatory motion and the example of circular motion is already given in the solution.

Ans 6:

Class : Class 6
Should be d

Ans 7:

Class : Class 9

Ans 8:

Class : Class 8
D, both oscillatory and circular. Because you see, in the pendulum, the length of the string is the same only. Even when it is completely rotated.

Ans 9:

Class : Class 7
Answer should be D

Ans 10:

Class : Class 10
answer should be D. Both Circulatory and Oscillatory.

Ans 11:

Class : Class 6
i think it should be rotational motion ,but among these options ,i think it will be d

Ans 12:

Class : Class 6
In oscillatory, the pendulum is moving at a fixed distance from the axis from which it is hung. It's like an arc of a circle. So, it should be D

Ans 13:

Class : Class 8
Option'D'.

Ans 14:

Class : Class 8

Ans 15:

Class : Class 9
It is D, oscillatory and circular.

Ans 16:

Class : Class 8
Not every oscillatory motion has the distance of the body same from the axis . For example : Motion of a guitar string . Hence the correct answer is B

Ans 17:

Class : Class 10
Shouldn't the answer be D - Circular and oscillatory

Ans 18:

Class : Class 10
the answer is circular and oscillatory

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6

Ans 3:

Class : Class 10
the answer is wrong

Ans 4:

Class : Class 10
answer is c

Ans 5:

Class : Class 6
The answer should be option D as all the other options are correct.

Ans 6:

Class : Class 6
b

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Class : Class 6
A IS WRONG

Ans 8:

Class : Class 6
The answer is D.

Ans 9:

Class : Class 6
The answer should be (A) as both co2 and o2 supports life on earth.

Ans 10:

Class : Class 6
The answer should be D

Ans 11:

Class : Class 6
A and B both are correct.

Ans 12:

Class : Class 6

Ans 13:

Class : Class 10

Ans 14:

Class : Class 9
It should be (D).

Ans 15:

Class : Class 8
the answer is d

Ans 16:

Class : Class 8
Ans is D

Ans 17:

Class : Class 7
I guess it should have been A.

Ans 18:

Class : Class 7
The answer is D!

Ans 19:

Class : Class 8
it should be option : b

Ans 20:

Class : Class 8
ha

Ans 21:

Class : Class 9
Its d

Ans 22:

Class : Class 8
Yes the answer is D

Ans 23:

Class : Class 8

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
R

Ans 2:

Class : Class 8
glass is an insulator and the part P is made of glass due to this Q , R, S are the wrong answer

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Subject :NSO    Class : Class 8

Ans 1:

Class : Class 10
Mycobacterium tuberculosis is the causative organism of tuberculosis

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
b

Ans 2:

Class : Class 3

Ans 3:

Class : Class 3
B

Ans 4:

Class : Class 5
B

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