Subject :NSO Class : Class 7
Subject :NSO Class : Class 4
Ans 7:
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Subject :NSO Class : Class 3
Match the columns and select the correct option.
Column I | Column II |
a. Boat | 1. Underwater |
b. Ship | 2. Across rivers and lakes |
c. Ferry | 3. Across a river or short sea route |
d. Submarine | 4. Long sea route |
A a-2, b-4, c-3, d-1
B a-2, b-1, c-4, d-3
C a-3, b-2, c-1, d-4
D a-1, b-2, c-3, d-4
The correct answer is A.
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 8
Ans 1:
Class : Class 7
I'm not sure what the answer is in this one, as the correct answer and the solution are mismatched.
Ans 7:
Class : Class 8
According to Faraday's right hand rule, electricity flowing from point A to B generates a magnetic field around the wire moving from right to left (above the wire), and left to right (below the wire). Due to the compass being above the wire (according to the question), the compass needle must be influenced by the magnetic field, such that it points towards the right; i.e. the needle points in a direction from left to right. Thus, I opine that option (A) is the correct answer, not option (D). As there is an electric current, there must be a magnetic field, and thus there must be a deflection in the compass, which excludes option (D) entirely.
Ans 11:
Class : Class 8
The solution says that the answer is supposed to be d but according to the explanation given the answer seems to be a. Please explain.
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Subject :NSO Class : Class 7
Ans 1:
Class : Class 8
Answer is option a as decomposition of dead matter of plant and animal by animals which gives nutrients to plants
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Subject :NSO Class : Class 3
Ans 10:
Class : Class 3
D - Because increase in plant also increases population of Caterpiler and Grasshopper, and decrease in snake may constant Bulbul population if plant did not increases.
Ans 11:
Class : Class 7
B first look which animals are connected to Bulbul with an arrow find their population then find population of other animals answer - B
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Subject :NSO Class : Class 5
Ans 2:
Class : Class 10
Single pulley does not provide any mechanical advantage, it only changes the direction of force while an inclined plane provides mechanical advantage. This means the efforts required to life the same amount of load on an inclined plane is lesser than that by a single pulley. (Pulley provides mechanical advantage only if we use more than one pulley).Lesser the inclination more is mechanical advantage and lesser the effort. That means the correct answer should be 'D'
Ans 6:
Class : Class 5
B because if we use a rope to pull it will take a lot of effort, if we take a small or large inclined plane it will also take more effort because the load will slip down but in pulley we have to only pull the rope
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Subject :NSO Class : Class 8