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Changes such as burning fossil fuels, water pollution and deforestation that have a global impact and disturb the natural balance of greenhouse gases are man made changes. This imbalance also causes temperatures to rise above normal levels.

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Meaning of spinning

Posted by Pranjal Agarwal 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

4 answers

Maharajan Subban 6 years, 4 months ago

The process of making yarn from fibre is called spinning

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Varuni Jindal 6 years, 4 months ago

The process of making yarn from fibre is called spinning.It can be done by hand or either machine.

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Aastha Tiwari 6 years, 4 months ago

The process of making yarn from fibre is called spinning

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Azka Aman 6 years, 4 months ago

Round and round is known as spinning in Hindi gol gol

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Some living things need not show all characteristics of living things. But they are living. Justify with e.g.

Posted by Sujatha Seshadri 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

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Melting point of ice

Posted by Ajay Yadav 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Azka Aman 6 years, 4 months ago

A point where ice melt

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Meaning of ***

Posted by Kanwalpreet Kaur 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

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What is mean by plant venation

Posted by Sandhya Mysani 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 6 years, 4 months ago

The pattern in arrangement of veins in the blade of a leaf is called as venation. Two types of venation are reticulate venation and parallel venation.

Reticulate venation involves net-like pattern of arrangement of veins. Most of the angiosperms with two cotyledons in the seed exhibit reticulate venation. e.g. Rose, Maple, Tulsi, Hibiscus, Red gram etc.

Parallel venation involves smaller veins running parallel to each other. Most of the monocot plants exhibit parallel venation in their leaves. e.g. Grains, banana, palm, onions, and grass etc.

Leaves in monocots show parallel venation whereas leaves in dicots show reticulated venation.

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what do you mean by ovules and ovary

Posted by Priya Ghugtyal 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Amrapali Tripathi 6 years, 4 months ago

The lower border of the pistil is called ovary. The ovary contains female cells called ovules.

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what are stamens and pistils and filaments

Posted by Priya Ghugtyal 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 6 years, 4 months ago

Petals
These are brightly coloured portions of a flower.

They petals are collectively called as corolla.
They are brightly coloured so as to attract insects and birds for pollination.
The number of petals is almost equal to the number of sepals in a flower.
In some flowers, the petals and sepals combine to form a round structure called as tepal.

The stamens are the male reproductive parts of a flower. Stamen is made up of a filament and anther.

Anther is a bilobed structure at the tip of the filament.

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What are taproot and Lateral roots

Posted by Priya Ghugtyal 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 6 years, 4 months ago

Tap root: The main root which is larger and fast growing is called tap root and the branched smaller roots is called lateral root.

For example: Beet root, Carrot, Sugar beet, Radish, etc.

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What do you mean by photosynthesis

Posted by Priya Ghugtyal 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 6 years, 4 months ago

Photosynthesis is a biochemical process by which plants, a few bacteria and protists use sunlight, carbon dioxide and water to produce oxygen and glucose. Oxygen is released as a by-product whereas glucose is used to carry out cellular activities.

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What are Creepers and climbers

Posted by Priya Ghugtyal 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Yogita Ingle 6 years, 4 months ago

Creepers: Plants with weak stem that cannot stand upright and spread on the ground are called creepers. Examples: Pumpkin, Watermelon, sweet potato, etc.

Climber: Plants with weak stem that needs support is called climber. Examples: Grapevine, money-plant, cucumber, bean, etc.

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Priya Ghugtyal 6 years, 4 months ago

Plants with weak stems that cannot be stand upright but read on the ground are called Creepers while those that take support and climber for called climber

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Sedimentation decantation and filtration different between

Posted by Priya Ghugtyal 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 6 years, 4 months ago

Sedimentation: Insoluble particles settle down at the bottom and the process is called sedimentation. For example; muddy water contains soil and sand in water. Soil and sand; being insoluble in water; settle down at bottom if water is allowed to stand for some time.

Decantation: This process is used after sedimentation. The upper layer; which contains water is slowly poured out from the container. It leaves the sediment behind.

Filtration: This method is used for separating fine insoluble solid particles from the liquid. In this process, the mixture is passed through a filter. The solid particles do not pass through the filter and clear liquid is collected.

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What are deficiencydiseases

Posted by Priya Ghugtyal 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Priya Ghugtyal 6 years, 4 months ago

Disease that acute due to lack of nutrients over a long period are called deficiency diseases

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Part of leaves???

Posted by Unnati Gangwar 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Priya Ghugtyal 6 years, 4 months ago

the parts of leaf lamina, petiole, stem ,midrib, veins.

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What is the process of making fibres?

Posted by Yelishi Yadav 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Priya Ghugtyal 6 years, 4 months ago

A process of fibres is called spinning .in this process the fibre from a mash of cotton Bula drawn out and twisted .they brings the fibre together

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Yogita Ingle 6 years, 4 months ago

The raw cotton is loosened and cleaned; to remove straw and dried leaves.
The cleaned cotton is then fed into a machine. The cotton fibre are combed, straightened and converted into a rope like structure called sliver.
The sliver of cotton fibre is converted into yarn by spinning using machines.

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How many e types of joints in our body question mark

Posted by Mayur Sarvaiya 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yelishi Yadav 6 years, 4 months ago

Six types

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what is petals?

Posted by Mayur Sarvaiya 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Priya Ghugtyal 6 years, 4 months ago

Petal that lies just above the upper layer .it is colour in main function to attract pollinators insects butterflies sector to the flower

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Yogita Ingle 6 years, 4 months ago

Petals: This layer lies just above the sepal layer. They are often bright in colour as their main function is to attract pollinators such as insects, butterflies etc to the flower. The petals are collectively known as the corolla.

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Why it is essential that a plant should have different types of arrangement of leaf on stem

Posted by Mannat Bajaj 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 5 years, 11 months ago

The study of leaf arrangements, or phyllotaxy, considers not only the descriptive classification of leaf arrangements but also theories regarding the cause of such arrangements.

The function of the arrangement of leaves (phyllotaxy) is to increase a plant’s ability to carry on photosynthesis by positioning the leaves in such away as tomaximize the surface area available to intercept sunlight.

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Diffrence between circular motion and oscillatry motion

Posted by Jiya Gupta 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Amrapali Tripathi 6 years, 4 months ago

Ocillatory-the to and fro motion of a body along the same path is called ocillatory motion. Eg= A child on a swing. Circular motion-the motion of a body along a circular path is called circular motion. Eg=whirling of a stone tied to a string

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Amrapali Tripathi 6 years, 4 months ago

Oscillatory- the to and fro

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What is the protiens

Posted by Manish Kumar 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

3 answers

Sachi Yenkar 6 years, 4 months ago

Proteins are needed for the growth and maintenance of our body. Proteins also give us energy to do work.It is called as body building food.

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Priya Ghugtyal 6 years, 4 months ago

Proteins are needed for the growth and maintenance of our body

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Vikrant Singh 6 years, 4 months ago

protein give us energy to do work.it is also called as body building food.

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Which one of the following is

Posted by Saradha Saradha 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

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What are slow and fast changes. Give exame

Posted by Mahesh Nagar 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Mahesh Nagar 6 years, 4 months ago

Good

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Yogita Ingle 6 years, 4 months ago

The changes which take place in a long period of time are called slow changes. For example: rusting of iron.
The changes which take place in a short period of time are called fast changes. For example: bursting of crackers.

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Give 10 example of transparent and translucent and opaque objects

Posted by Tanish Thakur 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Priya Ghugtyal 6 years, 4 months ago

Example of transparent are: glass, clear eyeglasses, clear drinking water ,polythene plastic sheets ,glass funnel, clear graduated cylinder, clear bottles, clear glass Windows ,clear drinking glass .example of translucent are :frosted glass, oil paper, some plastic ,tissue paper, colour liquid , tracing paper . example of opaque: illustration board ,cemented wall ,roof ,Card board.

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Soni Bitra 6 years, 4 months ago

Examples of transparent are : glass,clear eye glasses,clear drinking water,polythene plastic sheets,glass funnel,beakers,clear graduated cylinders,clear bottles,clear glass windows,clear drinking glass. Examples of translucent are: frosted glass,oil paper,some plastics,tissue paper,ice,waxed paper,colored liquids,tracing paper,clouds,tinted glass. Examples of opaque are: illustration board,cemented wall,roof,card board piece,book,wood,metal, aluminium,plastic,metals.

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Components of Milk

Posted by Sahil S 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 6 years, 4 months ago

The principal constituents of milk are water, fat, proteins, lactose (milk sugar) and minerals (salts). Milk also contains trace amounts of other substances such as pigments, enzymes, vitamins, phospholipids (substances with fatlike properties), and gases.

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how does our body understand sand is not needed and food is needed in our body ? Both of these are foreign objects

Posted by Arya Deb 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)

2 answers

Tanish Thakur 6 years, 4 months ago

Jhand

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Soni Bitra 6 years, 4 months ago

Our body absorbs minerals and vitamins from what we eat. If we eat sand we donot have any useful minerals in it so it gets decomposed in our body and we may get any disease. Where as in food which we eat it contains many minerals and vitamins in it.

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How Are reversible change different from Irreversible change give two example for each type

Posted by Archi Singh Patel Adarsh 6 years, 4 months ago

CBSE > Class 06 > Science (OLD)