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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
Hi, please clarify the answer. Not understood.

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Class : Class 6

Ans 3:

Class : Class 6
not understood at all

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
Correct ans is opt (B) therefore fluidity mean tendency of flow so it is greatest in gases

Ans 2:

Class : Class 9
C

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Subject :NSO    Class : Class 7

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Class : Class 8
a neurotoxic chemical warfare agent

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
because it has to be wet . or ask this question to god

Ans 2:

Class : Class 3
Wet' is ultimately just a word that applies to water. What we feel as wetness is actually coldness as the water evaporates. Below is an experiment from the Institute of Physics to test the feeling of 'wetness' between two different liquids: "The feeling of wetness is actually coldness. You can test this by comparing water with another liquid - cooking oil - which doesn't evaporate so freely. Fill two small cups (egg-cups are ideal) - one with water, and the other with cooking oil. (Young children should ask an adult to help.) Let both liquids come to room temperature for a day, or overnight. Dip one index finger in each liquid, lift them out, and then observe for a few minutes." Explanation: Liquids make surfaces wet (i.e. they stick to many solid surfaces) due to the electrostatic (opposite charges) forces between molecules. Water is polar—it has an uneven spread of electrical charge—which makes one end of the molecule positive and the other end negative. This causes water to be attracted to many surfaces and also explains many other properties of water.

Ans 3:

Class : Class 10
Wet' is ultimately just a word that applies to water. What we feel as wetness is actually coldness as the water evaporates. Below is an experiment from the Institute of Physics to test the feeling of 'wetness' between two different liquids: "The feeling of wetness is actually coldness. You can test this by comparing water with another liquid - cooking oil - which doesn't evaporate so freely. Fill two small cups (egg-cups are ideal) - one with water, and the other with cooking oil. (Young children should ask an adult to help.) Let both liquids come to room temperature for a day, or overnight. Dip one index finger in each liquid, lift them out, and then observe for a few minutes." Explanation: Liquids make surfaces wet (i.e. they stick to many solid surfaces) due to the electrostatic (opposite charges) forces between molecules. Water is polar—it has an uneven spread of electrical charge—which makes one end of the molecule positive and the other end negative. This causes water to be attracted to many surfaces and also explains many other properties of water.

Ans 4:

Class : Class 9
Wet' is ultimately just a word that applies to water. What we feel as wetness is actually coldness as the water evaporates. Below is an experiment from the Institute of Physics to test the feeling of 'wetness' between two different liquids: "The feeling of wetness is actually coldness. You can test this by comparing water with another liquid - cooking oil - which doesn't evaporate so freely. Fill two small cups (egg-cups are ideal) - one with water, and the other with cooking oil. (Young children should ask an adult to help.) Let both liquids come to room temperature for a day, or overnight. Dip one index finger in each liquid, lift them out, and then observe for a few minutes." Explanation: Liquids make surfaces wet (i.e. they stick to many solid surfaces) due to the electrostatic (opposite charges) forces between molecules. Water is polar—it has an uneven spread of electrical charge—which makes one end of the molecule positive and the other end negative. This causes water to be attracted to many surfaces and also explains many other properties of water.

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
I need help on how to arrive this answer, please share the details

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
Leaves change colour due to the reduction of amount of the green colour pigment named chlorophyll.

Ans 2:

Class : Class 7
Leaves are colored by molecules called pigments. The pigment that causes leaves to be green is chlorophyll. Chlorophyll is important for plants to make food using sunlight. During spring and summer when there is plenty of sunlight, plants make a lot of chlorophyll. In autumn when it starts to get cold, some plants stop making chlorophyll. Instead, those plants break down chlorophyll into smaller molecules. As chlorophyll goes away, other pigments start to show their colors. This is why leaves turn yellow or red in fall.

Ans 3:

Class : Class 10
Leaves change colour due to the reduction of amount of the green colour pigment named chlorophyll.

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Subject :NSO    Class : Class 10

Ans 1:

Class : Class 10
actually water is neutral. IRRESPECTIVE of volume ,it will contain equal no. of negative and positive charges. according to your que., you have 0.3L of water. assume that you have 36g of water(since the weight is not mentioned).Then calculate total moles of it(=2 moles).THEN ,calculate total moles of (H+) IONS i.e, +charge[=4 moles].Then,4*6.022*10power23. finally,total no. of +charge=24.088*10power23. I hope this will help you.

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 6

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