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What what is mean by East

Posted by Sakth Pree 5 years, 11 months ago

CBSE > Class 07 > Science

1 answers

Lalsab Mulla 5 years, 11 months ago

It means the direction

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What do you mean erect and virtual images

Posted by Tency Nicodemus 5 years, 11 months ago

CBSE > Class 07 > Science

1 answers

Yogita Ingle 5 years, 11 months ago

VIRTUAL IMAGE-

It is the image which:

1. Cannot be caught on the screen.

2. Is always errect image.

3. Image is formed behind the mirror.

ERECT IMAGE-

Erect means it is not distorted(or crumbled).

An erect image is an image in which, the up-down reversal is not occurred. That is, the image will be standing like the object.

Example: the image produced by a plane mirror is an erect image.

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What are villy

Posted by Bhuwan Yadav 5 years, 11 months ago

CBSE > Class 07 > Science

4 answers

Suraj Kushwaha 5 years, 11 months ago

Finger like outgrowth of the inner wall of small intestine are called as villi.

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Vikash Kumar 5 years, 11 months ago

Finger like projection in the small intestine Villi

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Yogita Ingle 5 years, 11 months ago

Villi refers to the numerous finger like projections on the inner wall of small intestine which help in the absorption of digested nutrients into circulatory system by increasing the surface area of absorption. Each villus has a lymph vessel and a blood vessel, out of which fatty acids and glycerols are absorbed in lymph while glucose and amino acids are absorbed in the blood.

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Vikash Kumar 5 years, 11 months ago

Finger like projection

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Sea breeze occur due to

Posted by Ark Pasawala 5 years, 11 months ago

CBSE > Class 07 > Science

1 answers

Bhubaneswar Purohit 5 years, 11 months ago

When the hot air rises from the land it rises up . At this time the cool air from the sea comes to the previous place of hot air to fill up the space . This leads to the sea breeze

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What is battery i want defination of range 8 class

Posted by Shrinidhi S 5 years, 11 months ago

CBSE > Class 07 > Science

1 answers

Any Khan 5 years, 11 months ago

A combination of cells is called a battery

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What is sewage ?

Posted by Vandana Uikey 5 years, 11 months ago

CBSE > Class 07 > Science

3 answers

Suraj Kushwaha 5 years, 11 months ago

Waste water is generated in homes, industries, agricultural fields and in other human activities is called as sewage

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Any Khan 5 years, 11 months ago

Wastewater that flows down the drains and contains some impurities is called sewage

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Vandana Uikey 5 years, 11 months ago

Djdddjfjxhfjdkxdhxrhfjmxejcuhfkxjdif

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Explain the types of mirror and lenses

Posted by Jaibun Nisha 5 years, 11 months ago

CBSE > Class 07 > Science

2 answers

Khushi Yadav 5 years, 11 months ago

There are 3 types of mirror and 2 type of lens 1) plane mirror 2)concave mirror 3)convex mirror There are 2 types of lens 1)concave lens 2)convex lens.

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Yogita Ingle 5 years, 11 months ago

Following are the types of mirrors that are most widely used:

Plane mirror: The images formed from a plane mirror are the reflected images in their normal proportions but reversed from left to right. These are the most widely used mirrors.

Convex mirror: These are the spherical mirror that is curved outward and the image obtained is virtual, diminished and erect for a real object.

Concave mirrors: These are the spherical mirror that is curved inward and the image obtained from these mirrors depend on the placement of the object.

Lenses: A lens is a part of a reflecting material like glass or plastic but curved from both sides. Lenses are unlike mirrors that have a reflecting surface only on one side. Depending upon its shape a lens can be categorized as:

Convex Lens - A Convex Lens is curved outwards. It is thicker in the centre and narrows down at the edges. It merges the light rays passing through it at a certain point. Therefore, it is also called a Converging Lens.
Concave Lens - A Concave Lens is curved inwards. It has wider edges and a thinner centre. It reflects back the light that travels through it in different directions. Therefore, it is also called a Diverging Lens.

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What is soil its example

Posted by Raghav Vasudev 5 years, 11 months ago

CBSE > Class 07 > Science

3 answers

Tavleen Kaur 5 years, 11 months ago

The uppermost fertile layer of earth

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Any Khan 5 years, 11 months ago

It is the uppermost layer of the earths surfave

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Yogita Ingle 5 years, 11 months ago

Soil is the material found on the surface of the earth that is composed of organic and inorganic material. Soil varies due to its structure and composition.

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A part from clock what are the method used to find time

Posted by Naresh Naresh 5 years, 11 months ago

CBSE > Class 07 > Science

1 answers

Any Khan 5 years, 11 months ago

Time is equal to distance upon speed

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Breathing is a

Posted by Alok Gupta 5 years, 11 months ago

CBSE > Class 07 > Science

1 answers

Meghna Thapar 5 years, 11 months ago

Breathing is a physical process which involves only intake of oxygen and release of carbon dioxide. It does not involve any biochemical process.

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What is the effect of acid on blue litmus paper

Posted by Vineet Pratap Singh 5 years, 11 months ago

CBSE > Class 07 > Science

3 answers

Hanna Sara John 5 years, 11 months ago

Red

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Hanna Sara John 5 years, 11 months ago

Red

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Rajesh Jha 5 years, 11 months ago

Red

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Name the following

Posted by Vineet Pratap Singh 5 years, 11 months ago

CBSE > Class 07 > Science

0 answers

ANSWER

What is sweet

Posted by Santosh Singh 5 years, 11 months ago

CBSE > Class 07 > Science

1 answers

.. ... 5 years, 11 months ago

containing, or tasting as if it contains, a lot of sugar

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Difine host

Posted by Saksham 3.0 5 years, 11 months ago

CBSE > Class 07 > Science

1 answers

.. ... 5 years, 11 months ago

is an organism that harbours a parasitic, a mutualistic, or a commensalist guest (symbiont), the guest typically being provided with nourishment and shelter.

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Difference between mirror and lens

Posted by Tanishka Gill 5 years, 11 months ago

CBSE > Class 07 > Science

1 answers

Yogita Ingle 5 years, 11 months ago

Mirror	Lens
This works on the principle of reflection	This works on the principle of refraction
These are manufactured using materials other than glass or clear plastic	These are manufactured using materials made up of glass or clear plastic
An ideal mirror reflects 100% of light	An ideal lense refracts 100% of light
The uses of mirror can be seen in houses, automobiles, solar appliances etc	The uses of lenses can be seen in astronomy and scientific industries, medical and research purposes etc.
There are two types: concave and convex	There are of six types of lenses
Plane mirrors does not have a focal point	It has two focal points for each kind of lense

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Name of following

Posted by Vineet Pratap Singh 5 years, 11 months ago

CBSE > Class 07 > Science

1 answers

Vineet Pratap Singh 5 years, 11 months ago

Name of following

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The process of removing nitrogenous wastes is called

Posted by Hari Mandal 5 years, 11 months ago

CBSE > Class 07 > Science

2 answers

Daksh Verma 5 years, 11 months ago

Yes you are true

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Yogita Ingle 5 years, 11 months ago

Many harmful substances are created during metabolic activities. These substances can prove lethal if not removed from the body in time. Removal of waste from the body is called excretion.

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Where is qoustion

Posted by Priyanshu Tiwari 5 years, 11 months ago

CBSE > Class 07 > Science

1 answers

.. ... 5 years, 11 months ago

a sentence or phrase that asks for an answer

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How does respiration takes place in insect briefly explain and answer

Posted by Nishtha Sharma 5 years, 11 months ago

CBSE > Class 07 > Science

2 answers

Yogita Ingle 5 years, 11 months ago

Insects breathe through the holes on their bodies; these holes are called spiracles. Thus, the exchange of gases in insects takes place through the spiracles.

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Prateeksha Dhianeshwar 5 years, 11 months ago

Insect respire through holes or spiracles on their body surface which will directly lead into the trachea and into smaller runners known as tracheoles . This tube directly takes to the cells for gas exchange.

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if i fail in pre boards exam can school drop me for board exam

Posted by Ved Gupta 5 years, 11 months ago

CBSE > Class 07 > Science

3 answers

Ritwik Choudhary 5 years, 10 months ago

Yes

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Any Khan 5 years, 11 months ago

Yes

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.. ... 5 years, 11 months ago

NO!!!

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Consider a region bound conical surface as shown in figure in this region is in vertically upward direction then find the electric field when electric flux is passing through curved surface of the cone

Posted by Anjali Kumari 5 years, 11 months ago

CBSE > Class 07 > Science

0 answers

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How does light travels

Posted by Saishakthi Aqua 5 years, 11 months ago

CBSE > Class 07 > Science

4 answers

Prateeksha Dhianeshwar 5 years, 11 months ago

Light travels in straight line and this property is known as rectilinear propagation of light

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Sanavi Mohite 5 years, 11 months ago

It travels in straight direction.

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Surjadeep Saha 5 years, 11 months ago

Light always travels in a straight line

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Wsimar Hira 5 years, 11 months ago

Light travels in a straight line in a uniform transparent medium.

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How did light traveal

Posted by Saishakthi Aqua 5 years, 11 months ago

CBSE > Class 07 > Science

2 answers

Hanna Sara John 5 years, 11 months ago

Light travels along a straight line

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.. ... 5 years, 11 months ago

Light always travels in straight path and this property is called rectillinear propagation of light.

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Assertion: Aerobic respiration involves excgange of gases twice. Reason: Exchange occurs from lung to heart and heart to lung.

Posted by Deadpool . 5 years, 11 months ago

CBSE > Class 07 > Science

1 answers

Ritwik Choudhary 5 years, 10 months ago

I guess both statements are correct and the reason correctly defines the assertion

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What is known as hermaphrodite

Posted by Prateeksha Dhianeshwar 5 years, 11 months ago

CBSE > Class 07 > Science

2 answers

Prateeksha Dhianeshwar 5 years, 11 months ago

In terms of reproduction in plants

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Yogita Ingle 5 years, 11 months ago

Many invertebrates and a significantly smaller number of vertebrates are hermaphrodites. A hermaphrodite possesses both male and female reproductive organs during their life span. Some of these animals self-fertilize, while others require a partner. It is a condition which enables a form of sexual reproduction in which both partners can act as the "female" or "male". Examples: Snails,worms and about 21 families of fish are Hermaphrodites.

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What is known as epiglottis

Posted by Prateeksha Dhianeshwar 5 years, 11 months ago

CBSE > Class 07 > Science

3 answers

Rajat Sharma 5 years, 11 months ago

Epiglottis is a flap like structure

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Lohith Lohi 5 years, 11 months ago

Hydro Good h High jjjbbdj

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Yogita Ingle 5 years, 11 months ago

Epiglottis forms the superior border of the glottis . Size of the epiglottis not responsible for the voice type . While swallowing glottis moves downwards

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What is acidic acid

Posted by Girender Phogat 5 years, 11 months ago

CBSE > Class 07 > Science

2 answers

Wsimar Hira 5 years, 11 months ago

Substances containing an acid are called acidic acids.

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Reeva Goswami Goswami 5 years, 11 months ago

Dhjwge

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During summer evening, Alisha was pouring water on her courtyard to keep it cool . Do you think this is a wastage of water? Give reasons for your answer

Posted by Safa Dalvi 5 years, 11 months ago

CBSE > Class 07 > Science

2 answers

Prateeksha Dhianeshwar 5 years, 11 months ago

No, she is thinking that As if she is pouring water to cool the courtyard but this has a benefit she is eventually watering the plants

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Sanavi Mohite 5 years, 11 months ago

Yes.

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Write a sbort note on rearing of silkmoth

Posted by Sanjay Sharma 5 years, 11 months ago

CBSE > Class 07 > Science

2 answers

Ritwik Choudhary 5 years, 10 months ago

Sericulture, or silk farming, is the rearing of silkworms for the production of raw silk. Silkworms are reared under suitable conditions of temperature and humidity to obtain silk threads from their cocoons. The female silk moth lays hundreds of eggs. These are stored on strips of cloth or paper.

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Yogita Ingle 5 years, 11 months ago

Silkmoth is a large, white insect. It lays hundreds of eggs which are stored at a suitable temperature. Eggs hatch to produce larvae which are called caterpillar or silkworm. Caterpillar eats and grow and secrets a liquid. Liquids hardens on coming in contact with air and changes into a fine protein thread. Caterpillars cover itself with these fibres and form cocoon.

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Is what is odometer

Posted by Vansh Kumar 5 years, 11 months ago

CBSE > Class 07 > Science