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Are you are mad CBSE guide shows that dinosaur and dodo is an endangered species and white tiger is extinct.

Posted by Garjan Singh 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Saumyarup Sen 8 years, 4 months ago

Hahaha

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Reproduction in humans

Posted by Eakanth Krishna 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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Unit of measuring ozone layer

Posted by Deepak Kumar 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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How does the petroleum is form

Posted by Yash Patil 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Amar Kumar 8 years, 4 months ago

A fossil fuel, petroleum is formed when large quantities of dead organisms, usually zooplankton and algae, are buried underneath sedimentary rock and subjected to both intense heat and pressure. Petroleum has mostly been recovered by oil drilling.

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What is polyester

Posted by Anuj Jain 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Amar Kumar 8 years, 4 months ago

Polyester is a synthetic fiber derived from coal, air, water, and petroleum.. Polyester is a term often defined as long-chain polymers chemically composed of at least 85% by weight of an ester and a dihydric alcohol and a terephthalic acid. In other words, it means the linking of several esters within the fibers.

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Metal react with oxygen

Posted by Aditi Thakur 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Amar Kumar 8 years, 4 months ago

Metals react with oxygen to form metal oxides. These metal oxides are basic in nature.

Metal + Oxygen ————>Metal Oxide

1)When magnesium burns in air, it combines with the oxygen of air to form magnesium oxide(basic oxide) Magnesium +oxygen ——–> Magnesium Oxide
2 Mg(s) + O₂(g) —–> 2MgO(s)

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Synthetic fibre

Posted by Rishab Rathore 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Amar Kumar 8 years, 4 months ago

Synthetic fiber :any of various man made textile fibers including usually those made from natural materials (such as rayon and acetate from cellulose or regenerated protein fibers from zein or casein) as well as fully synthetic fibers (such as nylon or acrylic fibers).

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What is species

Posted by Rajiv Patil 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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Advantages of using lpg and cng as a fuel

Posted by Rubal Dhairya 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Amar Kumar 8 years, 4 months ago

CNG and LPGs are the cleanest burning fuels of all fossil fuels.

Compressed Natural Gas (CNG) and LPGs(Liquid Petroleum Gas) are less polluting, non corrosive, clean fuels which can be used for burning.

Calorific value of these fuels are very high Hence they are used for cooking purpose.

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Scince

Posted by Shubham Meena 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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Muscle cells are branched or not

Posted by Shashank Bishti 8 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Shreya Bhardwaj 8 years, 4 months ago

No the aren't . They are spindle-shaped

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Samra Noor 8 years, 4 months ago

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What is chemical name of cotton

Posted by Dev Rahul 8 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Shreya Bhardwaj 8 years, 4 months ago

Cotton is made of cellulose. it isn't its chemical or scientific name.

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Dev Rahul 8 years, 4 months ago

Cellulose

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Sort answer type questions

Posted by Krishna Kanwar 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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What is convex lens

Posted by Avdhesh Bharti 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Nandhana Babu 8 years, 4 months ago

a convex lens is thicker at the centre than the edges

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What is exhaustible resources

Posted by Archi Jain 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Vaishnavi Tiwari 8 years, 4 months ago

That get replenished easily .

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Pants in longer than uterus

Posted by Nakul Pratap Chauhan 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Nakul Pratap Chauhan 8 years, 4 months ago

Panus in longer with how we will make cliche by sperm☁

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Posted by Suhani Maheshwari 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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Causes of global warming

Posted by Isha Sharma 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Vaishnavi Tiwari 8 years, 4 months ago

Exessive destruction of Greenhouse gas.

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What is the main function of cytoplasm ?

Posted by Vaishnavi Tiwari 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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What is reproduction in animals

Posted by Saumyarup Sen 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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How friction is a necessary evil

Posted by Pratik Sahu 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Ahana Tiwari 8 years, 4 months ago

As if there is no friction , we cannot do work, play etc

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What is an electrical charge

Posted by Kimkim Tonsing 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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What is organ

Posted by Rajat Verma 8 years, 4 months ago

CBSE > Class 08 > Science

1 answers

Mahith Ns 8 years, 4 months ago

Organ is formed by a group of tissues which in turn are made up of large number of cells

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How heat energy evolved during friction can be utilised?

Posted by Sanjeev Lamba 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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Why do gases cause pressure

Posted by Jashith Arora 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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why litchi is bitter ?

Posted by Shobha Devi 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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How the dinosaurs become extinct ?

Posted by Harshit Singh 8 years, 4 months ago

CBSE > Class 08 > Science

0 answers

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What is resource conservation?In short.

Posted by Evin Lunagariya 8 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Harshit Singh 8 years, 4 months ago

Using resources carefully and giving them time is called resource conservation.

2Thank You

Laksha Gupta 8 years, 4 months ago

Conservation of resource is the ethical use and protection of valuable resource such as trees ,minerals,wildlife,water and other .It focused on maintaining the natural world in order to protect the source of resource

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Methods of food presentation

Posted by Prabhjot Singh 8 years, 4 months ago

CBSE > Class 08 > Science

2 answers

Nandhana Babu 8 years, 4 months ago

there are many methods for preserving good 1.chemical method 2.preservation by common salt. 3.preservation by sugar. 4.preservation by oil and vinegar. 5.preservation by head and cold treatment. 6.preservating by storing and packing .

1Thank You

Tushar Sharma 8 years, 4 months ago

(1) Chemical Method (2) Preservation by common salt (3) Preservation by sugar (4)Preservation by Oil and Vinegar (5)Heat and Cold Treatments (6)Storage and Packing.

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What is hypotonic solution

Posted by Sunny Kumar 8 years, 4 months ago

CBSE > Class 08 > Science