Subject :NSO Class : Class 6
Subject :NSO Class : Class 6
Ans 1: (Master Answer)
Class : Class 1
D
A periodic motion may or may not be oscillatory .For example , motion of earth about sun is periodic but not oscillatory.
During circular motion of an object , its direction of motion changes with time and hence the velocity.So,the acceleration of the object is non zero.
Aluminium is a good conductor of electricity .Hence, statement v is wrong.
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 7
Ans 1:
Class : Class 7
But disc one is the white part and chlorophyll is necessary for photosynthesis. The point of this experiment is necessity of chlorophyll. And it says does/do not. Please be more clear about the question
Ans 2:
Class : Class 7
the answer should be option d as discs 1 and 2 are not covered and 3 and 4 are covered
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 4
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 7
Digestive juices were collected from three different regions of the alimentary canal. Drops of these juices were added to wells made in an agar of starch as shown in the given figure.
After an hour, the wells were rinsed with distilled water and flooded with iodine solution. The results are given in the table.
Well | 1 | 2 | 3 |
Colour of iodine solution |
Blue-black | Yellow - brown | Yellow - brown |
AWell 1 represents region that contains an enzyme pepsin that causes the breakdown of proteins into simple substances.
BWell 2 could represent region that contains an enzyme called salivary amylase.
CWell 3 could represent region that is the longest portion of alimentary canal and receives bile juice from liver and pancreatic juice from pancreas.
DAll of these
The options are placed wrongly. Well 1 cannot turn blue-black as it has protein. Well 2 should turn blue-black because it has starches. Only option c is correct. The answer is C