CBSE > Class 06 > Science (OLD) | CBSE Board | Homework Help

The main purpose of windmill is to convert wind energy into electrical energy, and when electrical energy is obtained, the following are the ways it is used:

For pumping of groundwater.
Extraction of oil from the seeds.
Milling of the grains.

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Krishnan N 6 years ago

Frddddf

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What is water conservation

Posted by Hari Sridhar 6 years ago

CBSE > Class 06 > Science (OLD)

4 answers

Maharajan Subban 6 years ago

Mental

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Maharajan Subban 6 years ago

True

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Adyadipti Tejaswini Puhan 6 years ago

The water is conserve when we faced scarcity of water we practiced water conservation the label of groundwater is decreasing day by day only a small fraction of water is available in earth which is fit for humans uses we cannot use ocean water directly that why that's why we need to conserve water by avoiding water wastage we can conserve water by we should use mop while cleaning the floor we should close the tap while brushing teeth we can use wet clothes to clean the cars in state of washing it

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Hari Sridhar 6 years ago

Water conservation is water

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Who discovered the magnet

Posted by Love Jot Singh 6 years ago

CBSE > Class 06 > Science (OLD)

3 answers

Adyadipti Tejaswini Puhan 6 years ago

Magnet were discovered by chance by an old Shepherd name magnes live in ancient Greece

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Abhishek Mahapatra 6 years ago

Magnes

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Devanshi Singhal 6 years ago

Magnes

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Explain why all the electric appliances in a houses stop working when main switch is put off

Posted by Renu Goud 6 years ago

CBSE > Class 06 > Science (OLD)

2 answers

Zara Naqvi 6 years ago

Because all wires are connected with that switch which allow appliances to work

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Renu Goud 6 years ago

Explain why all the electric appliances in a houses stop working when main switch is put off

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Why are camel live a desert and give the functions

Posted by Dharam Veer 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 6 years ago

Camels live in deserts, where it is hot and dry. Camels have adapted and found ways to help them survive in deserts. They have a thick coat of hair that protects them from the heat in the day, and keeps them warm at night. Their large feet spreads their weight on the sand when they are walking. When there is food and water, a camel can eat and drink large amounts of it and store it as fat in the hump. Then, when there is no food or water, the camel uses the fat for energy, and the hump becomes small and soft. A camel’s waste contains very little water. Even the water from the camel’s breath flows back into its mouth.The camels have bushy eyebrows that don't let the sand go in their eyes in a sandstorm. It has a long slender neck in order to reach high leaves such as palm trees, and rubbery patches on the belly and knees to protect the skin when kneeling and sitting on the hot sand.

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State whether Garfield thought "where Mondays last 2802 hours"is factually correct justify your answer

Posted by Prathamesh Kambalkar 6 years ago

CBSE > Class 06 > Science (OLD)

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How was asoka

Posted by Indrasen Dhakad 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 6 years ago

Emperor Ashoka the Great (sometimes spelt Aśoka) lived from 304 to 232 BCE and was the third ruler of the Indian Mauryan Empire, the largest ever in the Indian subcontinent and one of the world's largest empires at its time. He ruled form 268 BCE to 232 BCE and became a model of kingship in the Buddhist tradition. Under Ashoka India had an estimated population of 30 million, much higher than any of the contemporary Hellenistic kingdoms. After Ashoka’s death, however, the Mauryan dynasty came to an end and its empire dissolved.

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What is called curtifical sources of light

Posted by Rubi Devi 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Rubi Devi 6 years ago

What is called curtifical?

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Adaptations in desert rat

Posted by Makarand Deshpande 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 6 years ago

The kangaroo rat is almost perfectly adapted to life in the desert. They can survive without ever drinking any water, getting needed moisture from their seed diet. They have excellent hearing and can even detect the silent sound of an owl approaching. Their large back legs enable them to jump up to 9 feet (2.75m) in one jump in order to escape predators.

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Desert habitat

Posted by Aditya Singh Shekhawat 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Ashirkanha Tripathi 6 years ago

A camel have a long leg which help them to survive in desert. There dunk were dry. They excrete very less amount of urine. They can survive without water for many days.

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What are adaptation in fish?

Posted by Susmita Sadhukhan 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 6 years ago

Fish have adapted to their environment through the evolution of gills, swim bladders and fins. Gills allow fish to absorb oxygen from the water, swim bladders allow fish to maintain an appropriate level of buoyancy and fins allow the fish to move through the water. Its streamlined body also helps to resist flow of water.

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Derive an expression for the average density of earth

Posted by Tapas Kurmimunda Patel 6 years ago

CBSE > Class 06 > Science (OLD)

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Q no.2

Posted by Prasenjit Banerjee 6 years ago

CBSE > Class 06 > Science (OLD)

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Name five planets and their parts that we eat

Posted by Prasenjit Banerjee 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 6 years ago

The edible parts of a plant are as follows- i. Tulsi- its leaves are edible ii. Fenugreek- leaf, and seeds are edible iii. Coriander plant- leaves and seeds are edible. iv. Onion- stem and leaves are edible v. Banana- the fruit stem and root is edible vi. Spinach-leaf and stem are edible vii. Mustard- stem, seed, and leaf is edible viii. Potato- roots, and stem are edible.

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What is the unit of power of lens

Posted by Tapas Kurmimunda Patel 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 6 years ago

The reciprocal of focal length of the lens is called the power of the lens (P).

P (in dioptre) = 1/f(in meters)

The S.I unit of power of lens is diopter denoted by D.

From the formula of power of lens.

1 D = 1/1m = 1m^-1

Thus 1 Dioptre is the power of the convex lens having focal length of 1m.

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How many type of matter

Posted by Sushil Kumar 6 years ago

CBSE > Class 06 > Science (OLD)

3 answers

Momin Momi 6 years ago

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Tapas Kurmimunda Patel 6 years ago

5 state Solid, liquid,gas, plasma and Bose Einstein condensation state

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Yogita Ingle 6 years ago

the matter is made up of very tiny particles and these particles are so small that we cannot see them with naked eyes.

Following are the basic three states of matter:

Solid
Liquid
Gas

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Why do we need to separate biodegradable and non-biodegradable waste

Posted by Abineshwaran.E.B Abi 6 years ago

CBSE > Class 06 > Science (OLD)

2 answers

Yogita Ingle 6 years ago

We need to separate wastes into biodegradable and non biodegradable because biodegradable wastes are composed and are used as manure . non biodegradable wastes like plastics , glass are not composed thus allowing the increase in quantity of waste.

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Rabindra Nath Dakua 6 years ago

Yes

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Of water is a slow process Ans-river

Posted by Snehal Kamble 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Snehal Kamble 5 years, 11 months ago

In panchayat the elected members are called

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Of water is a slow process

Posted by Snehal Kamble 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Snehal Kamble 6 years ago

River

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Water is the source for many Lakes and well

Posted by Snehal Kamble 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Meghna Thapar 6 years ago

Fresh water includes water in ice sheets, ice caps, glaciers, icebergs, bogs, ponds, lakes, rivers, streams, and even underground water called groundwater.The source of almost all fresh water is precipitation from the atmosphere, in the form of mist, rain and snow.

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What is rainwater harvesting ? Explain the techniques of rainwater harvesting?

Posted by Sweta Singh 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Yogita Ingle 6 years ago

Rainwater harvesting is a technique of collecting and storing rainwater for domestic useRainwater harvesting is a technique of collecting and storing rainwater for domestic use. Three methods of rainwater harvesting followed in different regions of India for:

Bamboo dripping irrigation system in Meghalaya
Storing rainwater in underground 'tankas' in Rajasthan
Kuls or guls are the water diversion channels built mainly in the Himalayan region for agricultural purposes

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How to harvest water by using roof top rain water harvesting

Posted by Aditya Upadhyaya 6 years ago

CBSE > Class 06 > Science (OLD)

2 answers

Suniti Mukherjee 6 years ago

Air around us

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Sweta Singh 6 years ago

Rooftop rainwater harvesting: In this system the rainwater is collected from the rooftop to a storage tank through pipes. This water may contain soil from the roof and need filtering before it is used . Instead of collecting rainwater in the tank the pipes can go directly into apit in the ground this then seeps into the soil to recharge or refill the ground water

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What is amplitude

Posted by Aditya Upadhyaya 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Sweta Singh 6 years ago

Ripples in water, sound traveling in air, and coordinated vibrations of objects are examples of waves you have probably encountered in your life. A good way to visualize a wave is to insert the end of a pencil into a container of still water. The surface of the water is disturbed, producing ripples, or waves. Electromagnetic waves, such as light, radio waves, microwaves, and x-rays, are special waves that do not require a medium for propagation. We cannot see or hear these waves, but they exist in nature and in many of the products we use every day. Regardless of the kind, every wave has an amplitude. Amplitude is the maximum displacement of points on a wave, which you can think of as the degree or intensity of change. This maximum displacement is measured from the equilibrium position. The following picture shows a diagram of a sine wave. The diagram shows amplitude and wavelength, which is the distance between two successive like points on a wave. Wavelength is like the distance between two adjacent peaks or two adjacent valleys. Stated another way, wavelength is the time required to complete one full cycle of the wave.

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Write in detail about the electric cell

Posted by Oinam Julia 6 years ago

CBSE > Class 06 > Science (OLD)

1 answers

Sowmya Pai 6 years ago

Electric cell is a source of energy .It produces a small amount of electricity from chemicals stored inside it .Electric cell is also known as dry cell .The outer covering of the cell is made up of zinc .The metal tip is known as metal cap .There are two terminals in a electric cell .They are positive and negative .In a cell ,chemical energy is converted to electrical energy

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What is watercycle

Posted by Ayush Piyush 1234 6 years ago

CBSE > Class 06 > Science (OLD)

2 answers

Momin Momi 6 years ago

the process by which continously changes its form and circulate between oceans,atmosphere and land is known as the watercycle

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Aditya Upadhyaya 6 years ago

The surface of the earth by rain hail or snow goes back to the ocean. Thus water from the ocean and the surface of the earth goes into air as vapour and finally goes back to the ocean. The circulation of water in this manner is called the watercycle

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Who invented electric bulb

Posted by Anmol Khangura 6 years ago

CBSE > Class 06 > Science (OLD)