CBSE > Class 08 | CBSE Board | Homework Help

:The organisms which cannot see by naked eyes is called microorganism? Examples of microorganisms include bacteria, Archean, algae, protozoa, and microscopic animals such as the dust mite.

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In what ways did British officers exploit Indian

Posted by Vasudev Vk 6 years, 4 months ago

CBSE > Class 08 > English

1 answers

Divyansh Sharma. 6 years, 4 months ago

The British officer imposed heavy taxes on farmer and they made British goods free to import duty and they also cut thumb of indian artisians

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How to get cube root by easy way?

Posted by Mohmmad Arfat Khatib 6 years, 4 months ago

CBSE > Class 08 > Mathematics

1 answers

?Sheetal Sahu? 6 years, 4 months ago

Read in book by yourself

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The outer surface of a tumbler has a film of cooking oil on it. Is it wasier to hold it now? Explain

Posted by Rachoti Nikitha 6 years, 4 months ago

CBSE > Class 08 > Science

4 answers

Tripti Rawat 6 years, 4 months ago

A tumbler with oil coating is little difficult to handle due to the less frictional force occurring because of slippery oil surface.

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Rachoti Nikitha 6 years, 4 months ago

I am deleting this app

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Rachoti Nikitha 6 years, 4 months ago

This app is not helping

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Rachoti Nikitha 6 years, 4 months ago

Answer please

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Why the colour of sky seem to be blue rather than another colours?

Posted by Shahid Zehan 6 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Anik Kumar 6 years, 4 months ago

Because cloud are present in the sky which contain water droplets. And the colour of water is blue hence sky seems blue.

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Yogita Ingle 6 years, 4 months ago

Wavelengths of red and blue lights are 7000 A° and 4000 A°, respectively.
Fine dust particles in air and air molecules scatter blue light more effectively than red light. Blue light gets scattered all around the sky. Whichever direction we look some of the scattered blue light reaches us.
Since we see the blue light from every where overhead. The sky looks blue.

As we look closer to the horizon, the sky appears much paler in colour. To reach our eye, the scattered blue light must pass longer distance through the air.

Blue light gets scattered further more. Less blue light manages to reach our eyes. The colour of the sky near the horizon appears paler or white.

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Why is burning of fuel and important cause of global warming

Posted by Shivam Kumar Singh 6 years, 4 months ago

CBSE > Class 08 > Science

3 answers

Dharmendra Kushwaha 6 years, 4 months ago

The burning of fuels released green house gases. The green house gases increase the temperature of the Earth. That why burning of fuel is an important caused of global warming.

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Prityush Verma 6 years, 4 months ago

Because fuel doesn't burn completely and therefore produces carbon monoxide or carbon dioxide and is the most common reason for global warming

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Anik Kumar 6 years, 4 months ago

Because some fuel produces more amount of harmful products and smoke.

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What is rolling friction ?

Posted by Rounak Panghal 6 years, 4 months ago

CBSE > Class 08 > Science

3 answers

Yogita Ingle 6 years, 4 months ago

It is the friction when one body rolls over the surface of another body. This force slows down the motion of a rolling object. This opposing force comes into play when one body actually rolls over the surface of another body. For example, roller skates have wheels that help in moving very fast.

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Shahid Zehan 6 years, 4 months ago

The force friction which act upon round shaped object is called rolling friction

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Rounak Panghal 6 years, 4 months ago

When one object like a well roles over the surface the another object (the opposition object and residents ) known as rolling friction .

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What become clear as the jet Rose ten thousand feet height in the sky

Posted by Swagat Bhoi 6 years, 4 months ago

CBSE > Class 08 > English

3 answers

Vidhi Gupta 6 years, 4 months ago

The earth was clear

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Divyansh Sharma. 6 years, 4 months ago

Earth is round

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J∆Y Tush|R 6 years, 4 months ago

It was clear that the earth was round

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Why was bahadur shah zafar was exiled to rangoon

Posted by Lipi Banerjee 6 years, 4 months ago

CBSE > Class 08 > Social Science

0 answers

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13-4

Posted by Tanu Mahima 6 years, 4 months ago

CBSE > Class 08 > Mathematics

6 answers

Sia ? 6 years, 4 months ago

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Gurshaan Singh Puri 6 years, 4 months ago

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Yukti Luhana 6 years, 4 months ago

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Arpita Singh 6 years, 4 months ago

Of course the answer is 9 ????????

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?Sheetal Sahu? 6 years, 4 months ago

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Naman Jain 6 years, 4 months ago

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Long division method by 7921

Posted by Tanu Mahima 6 years, 4 months ago

CBSE > Class 08 > Mathematics

3 answers

Naman Jain 6 years, 4 months ago

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Gaurav Seth 6 years, 4 months ago

step 1 :- make duplet from left side

step 2 :- now apply rule of square root .

8 ) 7921 ( 8
8 64
=========== { rough :- 8 × 8 = 64
169 )1521 ( 89
9 1521
=========== { rough :- 169 × 9 = 1521
00

hence, square root of 7921 = 89

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Tanu Mahima 6 years, 4 months ago

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Formula of quadrilateral

Posted by Sweat Singh 6 years, 4 months ago

CBSE > Class 08 > Mathematics

2 answers

Naman Jain 6 years, 4 months ago

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Gaurav Seth 6 years, 4 months ago

<th colspan="2">Quadrilateral Area Formulas</th>

Area of a Square	Square Area = (side)2
Area of a Kite	Kite Area = (1 ⁄ 2) × Diagonal
Area of a Parallelogram	Parallelogram Area = Base × Height
Area of a Rectangle	Rectangle Area = Base × Height
Area of a Trapezoid	Trapezoid Area = base1+base22×height

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What do you mean as monarchy.

Posted by Ayesha Khatua 6 years, 4 months ago

CBSE > Class 08 > Social Science

5 answers

Raj Jana 6 years, 4 months ago

Monarchy is a system in which the king of a place will be the son of the king not any one else

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Divyansh Sharma. 6 years, 4 months ago

The govt of king and queen

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Dharmendra Kushwaha 6 years, 4 months ago

Monarch is a gorm of government where king or queen is the head of state. The total political power lies in single person. The citizens of the state have no right to choose their representative. It was usually practiced in olden days. Some countries like saudi Arab, still practicing monarch.

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Seema Gupta 6 years, 4 months ago

Monarchy means rule by a king or queen.

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Ayesha Khatua 6 years, 4 months ago

Please it's urgent.

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Whata is the summary of the chapter the moon wind

Posted by Anushka Tripathi 6 years, 4 months ago

CBSE > Class 08 > English

1 answers

Sia ? 6 years, 4 months ago

Check summary here : https://mycbseguide.com/cbse-revision-notes.html

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can you please explain me cube and cube root

Posted by Abhishek Yadav 6 years, 4 months ago

CBSE > Class 08 > Mathematics

1 answers

Yukti Luhana 6 years, 4 months ago

Cube means multiply 3 times &cube root means divide 3times

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प्रतियय के कितने भद होते ह उधरहरन सहित बतए

Posted by Golu Kumar 6 years, 4 months ago

CBSE > Class 08 > हिंदी

1 answers

Anshika Agarwal 5 years, 8 months ago

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Sulpher is good conducor or bad

Posted by Kripa Shankar Pandey 6 years, 4 months ago

CBSE > Class 08 > Science

6 answers

Sia ? 6 years, 4 months ago

Sulphur has the properties of poor conductor of both heat and electricity.

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Yukti Luhana 6 years, 4 months ago

Poor conductor

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?Sheetal Sahu? 6 years, 4 months ago

Sulphur is a bad Conductor of heat and electricity. It is also a non metal, as we know that non metal are bad conducter of heat and electricity.

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Dharmendra Kushwaha 6 years, 4 months ago

Sulphur os a non metal and having property of poor conduction of heat and electricity.

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Rahul Gupta 6 years, 4 months ago

Bad conductor of heat

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Yogita Ingle 6 years, 4 months ago

Sulphur is a non metal.
It has the properties of poor conductor of both heat and electricity
It is weak,dull and can be easily breakable.
So it is bad conductor.

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From cells what is formed?

Posted by Prerna Nair 6 years, 4 months ago

CBSE > Class 08 > Science

8 answers

Sia ? 6 years, 4 months ago

New cells are formed from preexisting cells through mitosis.

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Anushka ?? Singh 6 years, 4 months ago

From cells tissues are formed.....??

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Prerna Nair 6 years, 4 months ago

Ya tissues are formed

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?Sheetal Sahu? 6 years, 4 months ago

Tissue formed

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Dharmendra Kushwaha 6 years, 4 months ago

Tissue

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Anik Kumar 6 years, 4 months ago

Tissue is formed by cells.

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Ayesha Khatua 6 years, 4 months ago

Same kind of cell combinly formed Tissue.

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Prerna Nair 6 years, 4 months ago

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What is microorganisms

Posted by Shivam Prajapati 6 years, 4 months ago

CBSE > Class 08 > Social Science

5 answers

Nirdesh Yadav 6 years, 4 months ago

Mii

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Vaishnavi Tiwari 6 years, 4 months ago

All microorganisms are very small. so you seen not your eyes. they are seen only through microscope

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Jashanpreet Kaur 6 years, 4 months ago

Tusi

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Box Warner Gaming - Bwg 6 years, 4 months ago

These organism ar so small in size so they cannot be seen with naked eyes. These fungus that grows on bread can be seen with magnifying glass otherwise we cannot see microraganism withour help of micrscope

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Shivani Bisht 6 years, 4 months ago

Organisms which cannot be through naked eyes

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Example of report writing in hindi

Posted by Sankuratiri Vaishnavi 6 years, 4 months ago

CBSE > Class 08 > हिंदी

0 answers

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Difference between nitrifying and denitrifying bacteria.

Posted by Jagyaseni Behera 6 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Dharmendra Kushwaha 6 years, 4 months ago

Nitrification :-The process of conversion of ammonia ni nitrate is called nitrification. Denitrification:- The process of conversion of nitrates into free nitrogen is called denitrification. This process always occur in the presence of denitrifying bacteria.

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Gaurav Seth 6 years, 4 months ago

<th>BASIS FOR COMPARISON</th> <th>NITRIFICATION</th> <th>DENITRIFICATION</th>

Meaning	The part of nitrogen cycle where ammonium (NH4+) is converted into nitrate (NO3-) is called nitrification.	Denitrification is the level where reduction of nitrate (NO3-) is made into nitrogen gas (N2).
The process involves	Nitrifying bacteria like Nitrobacter, Nitrosomonas.	Denitrifying bacteria like Spirillum, Lactobacillus, Pseudomonas, Thiobacillus.
Grows slowly.	Grows rapidly.
Requires aerobic condition.	Requires anaerobic condition.
The microbes	Autotrophic.	Heterotrophic.
Precursor	Ammonium .	Nitrate.
End product	Nitrate.	Nitrogen.
pH and Temperature	The process occurs at the pH between 6.5 to 8.5 and temperature between 16 to 35 degree C.	The process occurs at the pH between 7.0 to 8.5 and temperature between 26 to 38 degree C.
Importance	Provides nitrate to the plant, which acts as the important nitrogen source.	Denitrification is used in wastewater treatment and is beneficial for aquatic habitats.

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What is constitution and describe its several methods

Posted by Samarth Shendge 6 years, 4 months ago

CBSE > Class 08 > Social Science

1 answers

Divyansh Sharma. 6 years, 4 months ago

Constitution is a written documents that have a record of laws and all and it is important to run our country It serves several purpose 1first it lays out certain ideals that form the basis of the kind of country that we are citizen aspire to live in 2 the second important purpose of a constitution is to define the nature of country political system 3 the third significant reason why we need a constitution is to save us from ourselves 4 the Constitution helps us to protect us against certain decision that we might take that could have adverse effects on the larger principle that the country believe in

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Give me chronology of indian strugle for independent

Posted by Vikas S 6 years, 4 months ago

CBSE > Class 08 > Social Science

0 answers

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Does domestic voilence act in 2005 improve the condition of women

Posted by Sarah Singh 6 years, 4 months ago

CBSE > Class 08 > Social Science

1 answers

Dharmendra Kushwaha 6 years, 4 months ago

Yes

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Baichung's father is 26 years younger than Baichung's grandfather and 29 years older than baichung. The sum of the ages of all the three is 135 years. What is the age of each one of them ?

Posted by Abhay Shekhawat 6 years, 4 months ago

CBSE > Class 08 > Mathematics

3 answers

Gaurav Seth 6 years, 4 months ago

let the age of Baichung be x years.
age of father would be x + 29 years.
age of grandfather would be x + 29 + 26
= x + 55 years

now sum of their ages is given to be 135 years.
so,
x + x + 29 + x + 55 = 135
3x + 84= 135
3x = 135 - 84
3x = 51
x = 51/3
x = 17

age of Baichung = 17 years
age of Baichung's father = 17 + 29 = 46 years
age of Baichung's grandfather = 17 + 55 = 72 years.