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Meghna Thapar 5 years, 10 months ago

Factory waste is neutralized before disposing it into water bodies because it contains harmful substances like toxic chemicals, aids, etc. which harms the aquatic organisms and may even kill them.
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Prateeksha Dhianeshwar 5 years, 10 months ago

In evergreen forest the roof made up by the leaves and branches do not allow the sunlight to reach the ground, so that only small trees can not survive in this forest

Aditya Bairagi 5 years, 10 months ago

In evergreens forest are closely spaced the sun light can not pass through it that no plants grow and photosynthesis disturb

Meghna Thapar 5 years, 10 months ago

In evergreen forests, the trees are closely spaced. Thick canopies of these closely spaced trees do not allow sunlight to penetrate inside the forest even in day time so small trees cannot survive in evergreen forest. Examples of trees found in evergreen forests are rosewood, ebony, mahogany, etc.
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Meghna Thapar 5 years, 5 months ago

Centre State Legislative Relations. Articles 245 to 255 in Part XI of the Constitution deal with the legislative relations between the Centre and the State. Extent of laws made by Parliament and by the Legislatures of States. The Parliament can make laws for the whole or any part of the territory of India. Though the country and the people may be divided into different States for convenience of administration, the country is one integral whole, its people a single people living under a single imperium derived from a single source." Finally, when the Constitution was adopted on 26 November 1949, it provided for India 

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Sachin Shukla 5 years, 10 months ago

3l
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Yogita Ingle 5 years, 10 months ago

The Slave dynasty was founded by Quṭb al-Dīn Aibak, a favourite slave of the Muslim general and later sultan Muḥammad of Ghūr. Quṭb al-Dīn had been among Muḥammad's most trusted Turkish officers and had overseen his master's Indian conquests.

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Dhruv Sharma 5 years, 10 months ago

Data

Mohit Chawda 5 years, 10 months ago

Data handling
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Meghna Thapar 5 years, 6 months ago

Nitrogen is an inert gas — meaning it doesn't chemically react with other gases — and it isn't toxic. But breathing pure nitrogen is deadly.  

<a href="https://www.google.com/search?q=What+is+toxic+nitrogen???&rlz=1C1CHBD_enIN888IN888&biw=1280&bih=561&tbm=isch&source=iu&ictx=1&fir=-9aSExT2iMn0-M%253A%252CJ-EefzmYjL6NuM%252C_&vet=1&usg=AI4_-kSC3jPKQJLRodWbIkRS0lsaFbCrrw&sa=X&ved=2ahUKEwitktOQ84PqAhVabSsKHdrWCP4Q9QEwAHoECAkQAw#imgrc=-9aSExT2iMn0-M:"></a>

Nitrogen dioxide poisoning is the illness resulting from the toxic effect of nitrogen dioxide (NO. ). It usually occurs after the inhalation of the gas beyond the threshold limit value.

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Yogita Ingle 5 years, 10 months ago

When electric current flows through a conducting wire, the temperature of wire increases. This is called heating effect of electric current. Devices Which Work on Heating Effect of Electric Current: Incandescent bulb is an example of a device which works because of the heating effect of electric current.

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Tani Sharma 5 years, 10 months ago

Vibgyor are the seven colours of rainbow V violet B blue G green Y yellow O orange R red
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Shristi Gairola 5 years, 10 months ago

Let the sides of triangle be 13y,14y,15y 13y+14y+15y= 84cm 42y = 84cm y = 84/42 y = 2 Sides are 13y= 13*2= 26 14y= 14*2=28 15y = 15*2 = 30 Check= 26+28+30= 84 cm
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Sachin Shukla 5 years, 10 months ago

121.5cm

Paras Farkade 5 years, 10 months ago

Area of parallelogram=base×height 13.5×19 256.5cm^2
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Meghna Thapar 5 years, 6 months ago

Reflection is when light bounces off an object. If the surface is smooth and shiny, like glass, water or polished metal, the light will reflect at the same angle as it hit the surface. This is called specular reflection. Light reflects from a smooth surface at the same angle as it hits the surface. Pure water is colorless, whether in a vapor, liquid, or solid phase. That is, the molecules of water cannot absorb visible light and so cannot yield colors like dye or pigment molecules. Water and glass not only reflect but also refract light. This means that as a light beam enters water or glass, the light bends.

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Yogita Ingle 5 years, 10 months ago

The law of reflection are -
1. angle of incident is equal to angle of reflection.
2. incident ray, reflected ray and normal all lies on the same plane

The above activity will show that the incident ray, reflected ray and the normal at the point of incidence all the three lie in the same plane.

 

1. Take a white sheet, spread it on a table.

2. Draw a line MM' on it and place a plane mirror vertically on this line.

3. Take a comb and cover all the opening of it except one. Now, let light pass through this opening such that the parallel light rays fall on the mirror.

4. Adjust the set-up in such a way that a pattern of incident and reflected ray is formed.

5. Now mark points A, B, C on incident ray and points D, E, F on its corresponding reflected ray.

6. Remove the mirror and join the points. Extend the line ABC and DEF to meet MM' at O.

7. OA is incident ray and OF is reflected ray. Draw ON perpendicular to MM'.

Therefore, we can see that incident ray, reflected ray and normal at the point of incidence, all lie in one plane.

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Ps Sharan 5 years, 10 months ago

Sorry... Ans is 0.55 m/s

Ps Sharan 5 years, 10 months ago

7.2 m/s
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Meghna Thapar 5 years, 10 months ago

Seeds and fruits dispersed by water have large and spongy outercoats so that they can float on the surface of water.
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Meghna Thapar 5 years, 10 months ago

Wind pollinating plants release billions of pollen grains into the air so that they can hit their targets on other plants as there is lot of wastage of pollen grains by blowing wind.

Meghna Thapar 5 years, 10 months ago

Wind pollinating plants release billions of pollen grains into the air so that they can hit their targets on other plants.
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Meghna Thapar 5 years, 5 months ago

Potato is the underground part of the stem that has thickened. This part of the stem is called a tuber. Whereas, Sweet potato is a root tuber because these are adventitious roots that become thick and fleshy due to storage of food and are swollen without any definite shape.

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