Subject :NSO Class : Class 5
Subject :NSO Class : Class 6
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Class : Class 6
from greek xero dry, phuton plant which plants needs very little water in desert
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Class : Class 7
Xerophytes ( Xero - Dry & phytes - Plant ) . Xerophytes are called " Dry Plants " because they need very little water to survive.
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Subject :NSO Class : Class 5
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 6
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Subject :NSO Class : Class 8
Ans 1:
Class : Class 8
Nerve cells are the specialised cells whose basic function is to transmit signals from our whole body to the brain.
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Subject :NSO Class : Class 8
Ans 1:
Class : Class 9
A thylakoid is a compartment present inside chloroplasts* and cyanobacteria**. They are the sites responsible for light dependent reactions during photosynthesis. They consist of a thylakoid membrane surrounding a thylakoid lumen. *a plastid in green plant cells which contains chlorophyll. **a bacteria which obtain energy from photosynthesis. A VERY EASY TOPIC IF YOU ARE ABLE TO UNDERSTAND IT.
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Subject :NSO Class : Class 7
Ans 1:
Class : Class 7
pH scale is a numerical representation of acidity and basicity of the substances. It varies from 1 to 14. The solutions with a pH value less than 7 are referred to as bases and those with a pH value of 7 are to as neutral.
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Class : Class 8
pH is the negative logarithm of H+ ions.
A substance having <7 pH is a Base
A substance having >7 pH is an Acid
Exact pH 7 is a neutral substance
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Class : Class 8
pH value are the value used to determine wheather a solution is acid or basic in nature
Acids= pH<7
Bases= pH>7
Neutral= pH=7
Ans 4:
Class : Class 9
-pH stands for potenz Hydrogen, pH value indicates whether the substance is acidic, basic of neutral.
- pH less than 7 is acidic
-pH greater than 7 is basic
- pH equal to 7 is neutral ( neither acidic nor basic)
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 8
Ans 9:
Class : Class 8
are you mad? olympiad is the best exam to test your logical,subjective and objective skills