CBSE > Class 07 > Science | CBSE Board | Homework Help

Plants take oxygen from stomata use it The breakdown of food and releases carbon dioxide and water. Roots also need oxygen to generate energy that take up air from the air spaces present between the soil particles

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Lakshmi Deepak 4 years, 9 months ago

Through stomata

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Vanshita Chaudhary 4 years, 9 months ago

Through stomata

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Divya Patkar 4 years, 9 months ago

Plants Have some Cells Called 'Stomata' Under The surface of their leaves...*Stomata* Helps In the exchange of gasses Of the plants...

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ANSWER

The sour taste of lemon is due to ________

Posted by Bhavika Rathore 4 years, 9 months ago

CBSE > Class 07 > Science

5 answers

Lakshika Rathee 4 years, 9 months ago

Acid

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Aditi Verma 4 years, 9 months ago

Acid

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Mehul Balwani 4 years, 9 months ago

Acid

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Lakshmi Deepak 4 years, 9 months ago

Acid

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Bhavika Rathore 4 years, 9 months ago

because of acid

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As a natural resource, groundwater is a. renewable and exhaustible. B. non-renewable and exhaustible. C. renewable and inexhaustible. d. non-renewable and inexhaustible.

Posted by Sia Grover 4 years, 9 months ago

CBSE > Class 07 > Science

1 answers

Nilabja Banerjee 4 years, 9 months ago

a. renewable and exhaustible

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ANSWER

Give three differences between arteries and veins

Posted by Anshul 281 4 years, 9 months ago

CBSE > Class 07 > Science

5 answers

Fatima Rahman❣️❣️ 4 years, 9 months ago

ARTERIES VEINS Transports Carry blood away from the heart to various parts of the body. Carry blood towards the heart from the various parts of the

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Anuj Saharan 4 years, 9 months ago

Difference between Arteries and Veins are :- Arteries = 1) Carry Oxygen rich blood. 2) have thick elastic walls. 3) Transfer blood from heart to all cells of body. Veins = 1) Carry Carbon Dioxide rich blood. 2) have thin walls. 3) Transfer blood from all cells to heart.

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Nilabja Banerjee 4 years, 9 months ago

1)Arteries have thick elastic wall 1) veins have thin walls 2) Arteries have no valves 2) Valves are present in veins 3)Carry oxygen rich blood in Arteries 4) Veins carry carbon dioxide rich blood

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Nilabja Banerjee 4 years, 9 months ago

1)Arteries have thick elastic wall 1) veins have thin walls 2) Arteries have no valves 2) Valves are present in veins 3)Carry oxygen rich blood

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Joemon Joseph 4 years, 9 months ago

Arteries and Veins Arteries are the blood vessels that carry blood away from the heart, where it branches into even smaller vessels. Finally, the smallest arteries, called arterioles are further branched into small capillaries, where the exchange of all the nutrients, gases and other waste molecules are carried out. Veins are the blood vessels present throughout the body. They are tube-like, translucent structures that function by carrying deoxygenated blood from the tissues to the heart for re-oxygenation. Compared to arteries, veins are thin-walled

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ANSWER

Important questions of chapter soil

Posted by Sunil Kumar 4 years, 9 months ago

CBSE > Class 07 > Science

1 answers

Lakshika Rathee 4 years, 9 months ago

Ques1. What is the soft, porous layer of the soil called? Ques2. What processes does formation of soil involve? Ques3. What is horizon Ques4. What is soil moisture Ques5. What do you mean by percolation Ques6. What is loamy soil? Ques7. What is soil profile? Ques8. What is bedrock?

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ANSWER

Define aerobic respiration and give examples?

Posted by Lakshmi Deepak 4 years, 9 months ago

CBSE > Class 07 > Science

2 answers

Abhinav Shukla 4 years, 9 months ago

The process of breakdown of food in the presence of oxygen is called aerobic respiration.

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Sunil Kumar 4 years, 9 months ago

Aerobic respiration is the process of producing cellular energy in the presence of oxygen gas to produce energy from food. Example : are all multicellular organisms like birds, animals, insects, humans etc.

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ANSWER

Write the type of forest names

Posted by Harshit Chouhan 4 years, 9 months ago

CBSE > Class 07 > Science

3 answers

Nehal Jain 4 years, 9 months ago

Tropical forest; Tropical rain forest; Tropical decidous forest; Tropical evergreen forest.

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Rima Mai 4 years, 9 months ago

1) Tropical forests 2) Tropical dedicous forests 3) Tropical evergreen forests 4) meditarrien forests

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Sunil Kumar 4 years, 9 months ago

These forests can be classified in five major groups namely: Moist tropical forest. Dry tropical forest. Montane temperate forest. Montane sub tropical forest. Alpine forest.

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ANSWER

When is photosynthesis presence ?

Posted by Shradhha Lande 4 years, 9 months ago

CBSE > Class 07 > Science

3 answers

Priyanshi Yadav 4 years, 9 months ago

Photosynthesis presence in plants .In this process plant make their own food with the help of CO2 ana water (H2o)

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Sunil Kumar 4 years, 9 months ago

Photosynthesis presence in plants. Photo synthesis is presence in when plats make their food

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Manish Pandit 4 years, 9 months ago

Photosynthesis presence in plants. Photo synthesis is presence in when plats make their food

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ANSWER

1to19

Posted by Prince Yadav Prince Yadav 4 years, 9 months ago

CBSE > Class 07 > Science

1 answers

Shradhha Lande 4 years, 9 months ago

The water cycle shows the continuous movement of water within the Earth and atmosphere. ... Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow. Water in different phases moves through the atmosphere (transportation).

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ANSWER

Describe Water Cylce

Posted by Rudra Rayka 4 years, 9 months ago

CBSE > Class 07 > Science

2 answers

Devapriya K 4 years, 9 months ago

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Sia Grover 4 years, 9 months ago

Water constantly moves from the earth to the air and comes back to the earth again. This constant circulation of water in nature is known as the water cycle

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Describe Water Y

Posted by Rudra Rayka 4 years, 9 months ago

CBSE > Class 07 > Science

0 answers

ANSWER

Rajesh was driving his car at a speed of 120 km/hr. though the speed limit was 50 km/hr. As a result he collided with an another stopped car and got serious injuries. A person passing by stopped and helped Rajesh to get out of the car and returned to the home safely. (i) Define speed. (ii) What values were shown by the person who helped Rajesh. Pls ans me!!!!!??

Posted by Kirti Sharma 4 years, 8 months ago

CBSE > Class 07 > Science

1 answers

Sia ? 4 years, 8 months ago

Distance covered by an object in a unit time is called speed of that organism
The person who helped Rajesh was a kind,helpful,caring,peaceful,person and was a good citizen

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ANSWER

Make a sketch showing ground water and water table.lable it.

Posted by Hansika Lakkoju 4 years, 9 months ago

CBSE > Class 07 > Science

0 answers

ANSWER

What is non uniform

Posted by Gargi Agnihotri 4 years, 9 months ago

CBSE > Class 07 > Science

2 answers

Rima Mai 4 years, 9 months ago

Non uniform motion : non uniform is a motion in which a body covers equal intervels of time is called non uniform motion

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Kirti Sharma 4 years, 9 months ago

not uniform: such as. a : marked by varied or changing appearance (as of surface, color, or pattern) Hence, we don't see a smooth lenticular galactic disk, but an ill-defined, and nonuniform luminous celestial path—the galaxy called the Milky Way.—

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What is Spectrum of a Light ~

Posted by Manjula Bagul 4 years, 9 months ago

CBSE > Class 07 > Science

2 answers

Sia Grover 4 years, 9 months ago

Sir Isaac Newton a great scientist who lived in the 17th century showed that ordinary white light is made up of seven Colours voilet, Indigo, blue, green yellow, orange and red The pattern formed by this colour is called a spectrum

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Kirti Sharma 4 years, 9 months ago

A spectrum (plural spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum. The word was first used scientifically in optics to describe the rainbow of colors in visible light after passing through a prism.

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ANSWER

Whate is cyclone

Posted by Nikhil Chandeela 4 years, 9 months ago

CBSE > Class 07 > Science

3 answers

Sia Grover 4 years, 9 months ago

Cyclone is a violent storm it develops over the sea and then may move overland causing a great damage a cyclone may cover hundred of kilometre and winds in it may blow at speed more than 200 km per hour cyclones are associated with strong winds heavy rains and tidal waves they are generally restricted to tropical latitudes

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Prince Yadav Prince Yadav 4 years, 9 months ago

ছগডফধবগগডপবড

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Manjula Bagul 4 years, 9 months ago

The chain of events ends with the formation of a very low - pressure system with very high - speed winds revolving around it. It is this weather condition that we call a cyclone . A cyclone is known by different names in different parts of the world. It is called a 'hurricane' in the American continent.In Philippines and Japan it is called a 'typhoon'.

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Which of these is not a unit of distance

Posted by Ramesh Raika 4 years, 9 months ago

CBSE > Class 07 > Science

2 answers

Abhay Shukla 4 years, 9 months ago

Shissh

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Samyak Bhujade 4 years, 9 months ago

Ask the complete question

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ANSWER

Define white blood cells?

Posted by Lakshmi Deepak 4 years, 9 months ago

CBSE > Class 07 > Science

4 answers

Sia Grover 4 years, 9 months ago

White blood cells are slightly larger than red blood cells they do not have a fixed shape there are fewer in number then red blood cells they are main job is to fight against diseases by destroying harmful bacteria and other foreign material they are able to move on their own this helped them to pass through walls of blood vessels and treat infected Parts of the body

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Tejaswini Punde 4 years, 9 months ago

Their are different types of cell . White blood cells help us to fight against the grams and disease

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Saismita Behera 4 years, 9 months ago

There are different types of cells in our body. White blood cells (WBCs) are one of them . They help to fight bacteria and other diseases in our body.

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Harshada Gaikwad 4 years, 9 months ago

There are different types of cells in our body. White blood cells (WBCs) are one of them . They help to fight bacteria and other diseases in our body.

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ANSWER

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