CBSE > Class 08 > Science | CBSE Board | Homework Help

Food selection is based mainly on availability, convenience and time, rather than food value
Influence of peers, mass media, prevalent body image
Personal self-esteem and body image guide the eating behaviour
Missing meals and snacking are very common
Fast food joints are mainly patronized by adolescents. These spoil the appetite for regular meals and are high on calories and low on nutrients.
Helps in achieving rapid growth and full growth potential
Helps in timely sexual maturation
Ensures adequate calcium deposition in the bones and helps in achieving normal bone strength
Establishes good eating habits and sets the tone for a lifetime of healthy eating. This prevents obesity, osteoporosis (weak bones due to deficiency of calcium), and diabetes in later life.

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ANSWER

Number of electron in 1C

Posted by Annu Kushwaha 6 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Hiranya Swargiary 6 years, 1 month ago

19 electrons are present in 1c

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Om Kumar 6 years, 1 month ago

2Thank You

Chinmayee Thumminkatti 6 years, 1 month ago

2Thank You

ANSWER

Name all the types of forces......

Posted by Anushka ?? Singh 6 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Isha Prasad 6 years, 1 month ago

Electroststic force,muscular force,magnetic force

2Thank You

Rishi Raj 6 years, 1 month ago

Contact force Parts of contact force are follow 1) muscular force 2)eltrostatic force 3)firction Non contact force Parts of non contact force 1)gravity 2) Magnetic force

2Thank You

Pragati Sahu 6 years, 1 month ago

There are two types of forces 1.contact force 2.non-contact force

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Manimegalai Nayakkar 6 years, 1 month ago

Kinetic force , potential forces , muscular force, static force,

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ANSWER

Which of the following cannot be charged easily by friction? A.A plastic scale B.A copper rod C.An inflated balloon D.A woollen cloth.

Posted by Radha Sharma 6 years, 1 month ago

CBSE > Class 08 > Science

5 answers

Radha Sharma 6 years, 1 month ago

A copper rod (B)

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Om Kumar 6 years, 1 month ago

Plastic scale

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Rishi Raj 6 years, 1 month ago

Plastic scale

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Yash Karemore 6 years, 1 month ago

inflated balloon

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🖤 🖤 6 years, 1 month ago

D.A woollen cloth

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ANSWER

Most liquids that conduct electricity are solutions of ____________,___________and_____________.

Posted by Radha Sharma 6 years, 1 month ago

CBSE > Class 08 > Science

5 answers

🖤 🖤 6 years, 1 month ago

Most liquids that conduct electricity are solutions of ACID, BASE and SALT......

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Om Kumar 6 years, 1 month ago

Acid , base and salt

1Thank You

Prince Gohil 6 years, 1 month ago

Acid, base and salt

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Manimegalai Nayakkar 6 years, 1 month ago

Acid bases and salts ✌✌

1Thank You

Yash Karemore 6 years, 1 month ago

acid,bases and salts

1Thank You

ANSWER

The unit of frequency is _____________.

Posted by Radha Sharma 6 years, 1 month ago

CBSE > Class 08 > Science

8 answers

🖤 🖤 6 years, 1 month ago

0Thank You

Om Kumar 6 years, 1 month ago

Hertz or Htz.

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Vanitha Jayasimhan 6 years, 1 month ago

0Thank You

Prince Gohil 6 years, 1 month ago

Hertz

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Manimegalai Nayakkar 6 years, 1 month ago

Hertz✌✌

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Anushka ?? Singh 6 years, 1 month ago

hertz

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Yash Karemore 6 years, 1 month ago

hertz

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Md Shahabuddin 6 years, 1 month ago

Hertz

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ANSWER

Sound can travel through A.gases only B.solids only C.liquids only D. All of these

Posted by Radha Sharma 6 years, 1 month ago

CBSE > Class 08 > Science

7 answers

Radha Sharma 6 years, 1 month ago

All of these

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Prince Gohil 6 years, 1 month ago

D. All of these

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Charitha Bhaskar..... ???? 6 years, 1 month ago

All of these

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Rishi Raj 6 years, 1 month ago

All of these

0Thank You

Manimegalai Nayakkar 6 years, 1 month ago

D.All of these

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Yash Karemore 6 years, 1 month ago

D.all of these

1Thank You

🖤 🖤 6 years, 1 month ago

D. All of these. Solids can travel the loudest through solids. Sound can also travel through gases but is the lowest....

1Thank You

ANSWER

What is metamorphosis?Give examples.

Posted by Radha Sharma 6 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Anamika Sharma 6 years ago

The drastic change that transforms a larva into an adult is called metaphorphosis. Ex:,frog silkworm honeybee

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Yogita Ingle 6 years, 1 month ago

Metamorphosis is a biological process in which a larva transforms into an adult. It involves sudden and abrupt changes in the body structure of the animal by cell growth and differentiation. It is generally observed in amphibians (e.g., frogs) and insects (e.g., butterflies), etc.
The life cycle of a frog has three life stages.

Egg → Tadpole → adult

Eggs Eggs are the result of external fertilisation which transform into fish like tadpoles.
TadpoleTadpole has gills, small mouth and fish like tail to swim inside lakes and ponds.
Frog: Tadpole grows and transforms into a small frog which is an amphibian by nature.

1Thank You

Manimegalai Nayakkar 6 years, 1 month ago

Metemorphosis is a biological process of animal for eample frog

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ANSWER

The number of nuclei present in a zygote is A.none B.one C.two D.four

Posted by Radha Sharma 6 years, 1 month ago

CBSE > Class 08 > Science

5 answers

🖤 🖤 6 years, 1 month ago

C. 2

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Radha Sharma 6 years, 1 month ago

One (B)

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Manimegalai Nayakkar 6 years, 1 month ago

Two

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Anushka ?? Singh 6 years, 1 month ago

0Thank You

Yash Karemore 6 years, 1 month ago

C. two

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ANSWER

Best types to study science

Posted by Dharmender Rachan 6 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Dharmender Rachan 5 years, 11 months ago

I love you??

0Thank You

Yash Karemore 6 years, 1 month ago

try to understand by your own and then take help of teachers or apps like byjus

1Thank You

ANSWER

Why light always travel in the straight path

Posted by Siddharth Punn 6 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Manimegalai Nayakkar 6 years, 1 month ago

True

0Thank You

Yogita Ingle 6 years, 1 month ago

Light is made up of packets of energy called photons which travel in a straight line at a very fast speed. Light can move through small apertures and holes and can change direction, but will always travel in straight lines.

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ANSWER

Internal fertilisation occurs A.in female body. B.outside female body. C.in male body D.outside male body

Posted by Radha Sharma 6 years, 1 month ago

CBSE > Class 08 > Science

5 answers

Anushka ?? Singh 6 years, 1 month ago

Inside the female body.....

0Thank You

Yash Karemore 6 years, 1 month ago

A. in female body

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🖤 🖤 6 years, 1 month ago

A. Inside female body....m

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Sanjib Rout 6 years, 1 month ago

A inside female body

1Thank You

Manvi Jain 6 years, 1 month ago

A.inside female body

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ANSWER

What is a zygote

Posted by Arnab Bol 6 years, 1 month ago

CBSE > Class 08 > Science

3 answers

Manimegalai Nayakkar 6 years, 1 month ago

Zygote has a single cell and is the new indiviual that grow by the process of fertilisation

0Thank You

Ayesha Tasleem 6 years, 1 month ago

The fused egg in the process of fertilisation is called zygote.

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Manvi Jain 6 years, 1 month ago

Zygote is the new individual that grow by the process of fertilisation

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ANSWER

What is precipitation

Posted by Pramiti Mukherjee 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Manvi Jain 6 years, 1 month ago

Precipitation is any form of liquid or solid water particles that fall from the atmosphere and reach the surface of the Earth.

1Thank You

ANSWER

What is a precipitation

Posted by Pramiti Mukherjee 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Manvi Jain 6 years, 1 month ago

Precipitation is any form of liquid or solid water particles that fall from the atmosphere and reach the surface of the Earth.

1Thank You

ANSWER

LPG is better domestic fuel then wood.why?

Posted by Charitha Bhaskar..... ???? 6 years, 1 month ago

CBSE > Class 08 > Science

2 answers

Charitha Bhaskar..... ???? 6 years ago

Thank you bro

0Thank You

Manvi Jain 6 years, 1 month ago

Yes lpg is better fuel then woid:- As it produce less smoke It has less calorfic value It can be easily transported through pipes

2Thank You

ANSWER

Human being how much desiable hearing

Posted by Deepak Kannaujiya Deepak 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 10 months ago

An object must vibrate with a frequency of at least 20 hertz to be able to produce audible sound. The sound within a range of 20 hertz to 20,000 hertz is called audible sound. The sounds of frequencies less than 20 hertz are called infrasonics. The sounds having too high frequencies which cannot be heard by human ear are called ultrasonic sounds or ultrasound.

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ANSWER

Why does charcol not produce flame?

Posted by Death X 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Ayesha Tasleem 6 years, 1 month ago

Because charcoal contains carbon where as for a flame oxygen is required.

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ANSWER

what is combustible

Posted by Rajesh Kumar 6 years, 1 month ago

CBSE > Class 08 > Science

4 answers

Charitha Bhaskar..... ???? 6 years, 1 month ago

A chemical process in which a substance reacts with oxygen to give off heat and light

1Thank You

Tvisha Patel 6 years, 1 month ago

A substance that catches fire easily on burning

2Thank You

Rajesh Kumar 6 years, 1 month ago

a substance which takes place very fast produce heat and energy

2Thank You

Rajesh Kumar 6 years, 1 month ago

what is combustible

3Thank You

ANSWER

What is cinvitation

Posted by Shall Arya Arya 6 years, 1 month ago

CBSE > Class 08 > Science

1 answers

Meghna Thapar 5 years, 6 months ago

Cultivation is the act of caring for or raising plants. The word cultivation is most often used to talk about the ways that farmers take care of crops. However, in a more general sense, the verb cultivate means to improve or train someone or something.

The basic stages of cultivation include;

Seed selection.
Land preparation.
Crop establishment.
Water management.
Nutrient management.
Crop health management.
Harvesting.
Post harvest.

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ANSWER

Why monkey bam is red

Posted by Rahul Bisht 6 years, 1 month ago

CBSE > Class 08 > Science

6 answers

Rahul Bisht 5 years, 10 months ago

You are stupid fallow

0Thank You

Rahul Bisht 5 years, 10 months ago

You all are stupid

1Thank You

Rahul Bisht 6 years ago

You are stupid

1Thank You

Pragati Sahu 6 years, 1 month ago

Stupid

1Thank You

Pragati Sahu 6 years, 1 month ago

Stupid fallow

2Thank You

Ved P Patel 6 years, 1 month ago

Are you stupid

1Thank You

ANSWER

Write short note about aids

Posted by Ronit Ningthoujam 6 years, 1 month ago

CBSE > Class 08 > Science

2 answers

🖤 🖤 6 years, 1 month ago

AIDS mean Acquired Immune Deficiency Syndrome is caused by HIV virus. It spreads through infected injections used for inserting the drugs...

0Thank You

Shanu Saini 6 years, 1 month ago

Alternative Name: Acquired Immune Deficiency Syndrome AIDS (Acquired Immune Deficiency Syndrome) is the final and most serious stage of HIV disease, which causes severe damage to the immune system. The Centers for Disease Control has defined AIDS as beginning when a person with HIV infection has a CD4 cell (also called "t-cell", a type of immune cell) count below 200. It is also defined by numerous opportunistic infections and cancers that occur in the presence of HIV infection.

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ANSWER

What is the unit of frequency

Posted by Sonal Sharma 6 years, 1 month ago

CBSE > Class 08 > Science