Incorrect URL accessed!!!!

ANSWER

Calamine solution contains

Posted by Dhanushh H 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Yogita Ingle 7 years, 3 months ago

The chemical name of Calamine Solution is Zinc Silicate Solution.
Calamine is either a mixture of zinc oxide (ZnO) with about 0.5% ferric oxide(Fe₂O₃) or a zinc carbonate compound, which is the main ingredient in calamine lotion.

ANSWER

What is seletive breeding?

Posted by Pro B 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Yogita Ingle 7 years, 3 months ago

The process of breeding of selective parents for obtaining special characters in their offspring, such as soft under hair in sheep, is termed as selective breeding.

ANSWER

How do humans respire

Posted by Akash Sangwan 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Keshav Bansal 7 years, 3 months ago

With the help of lungs

ANSWER

Why do we need ventilators in our home

Posted by Parth Surmare 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Yogita Ingle 7 years, 3 months ago

Ventilation is extremely necessary as it circulates air in the house. There is a constant supply of fresh air and this removes the air present before. If there was no ventilation then the room might stink and there can be a feeling of stuffiness. Ventilation is very useful for those people who are suffering from respiratory diseases.

ANSWER

Why houses in rajasthan made of thatched roof and mud

Posted by Kinjal Weladi 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Deepti Bala 7 years, 3 months ago

To keep the house cool

ANSWER

Removal of fleece from the skin of a sheep is called

Posted by Abid Nn 7 years, 3 months ago

CBSE > Class 07 > Science

3 answers

Aaditya Patil 7 years, 3 months ago

Shearing

Pro B 7 years, 3 months ago

That's shearing...

Deepti Bala 7 years, 3 months ago

Reeling

ANSWER

Is it correct to say that the both the hands of a clock moves at a uniform circular motion

Posted by Aditya Pawar 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Meghna Thapar 5 years, 10 months ago

A path having the shape of a circle is called circular path. When an object moves along a circular path, it is called circular motion.

Examples of circular motion:

The movement of tip of the hand of clock.

Periodic motion is the motion which repeats itself after regular intervals of time. Examples of periodic motion: The motion of seconds’ hand of a watch.

ANSWER

why i can not chek important question

Posted by Sahil Khan 7 years, 3 months ago

CBSE > Class 07 > Science

2 answers

Sahil Khan 7 years, 3 months ago

you are gu khana

Muhammad Anas Anas 7 years, 3 months ago

Beasuse you are a fool

ANSWER

10complete osilate in 20 second

Posted by Harpreet Singh 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Harpreet Singh 7 years, 3 months ago

2. 1 second

ANSWER

Example of physical change

Posted by Subham Raj 7 years, 3 months ago

CBSE > Class 07 > Science

7 answers

Muhammad Anas Anas 7 years, 3 months ago

Physical change means no new substance formed and physical change can be reversible or non reversible

Aaditya Patil 7 years, 3 months ago

Folding and unfopding of paper

Biswa Raj Majhi 7 years, 3 months ago

Water to vapour

Anand Anu 7 years, 3 months ago

Melting of wax into wax vapour

?Sheetal Sahu? 7 years, 3 months ago

Breaking down larger food particle into smaller food particles. It is a physical change.

Yogita Ingle 7 years, 3 months ago

Physical Properties: Shape, Size and State of substance are known as physical properties. For example; when a sheet of paper is folded, its shape changes and this is an example of change in physical property.

Atul Singh 7 years, 3 months ago

Ice to water

ANSWER

How soil is formed?

Posted by Subham Das 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Suchitra Sen 7 years, 3 months ago

Soil is formed by a prosess called weathering.it is the process in which big rock break down into smaller pieces by weathering agents like water ,wind,storm etc.

ANSWER

What is the difference between H2 and H2O?

Posted by S A 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Ayush Jha 7 years, 3 months ago

H2 is hydrogen and H20 is water

ANSWER

Iron oxide = iron + water + _______

Posted by Disha Gogoi 7 years, 3 months ago

CBSE > Class 07 > Science

2 answers

Muhammad Anas Anas 7 years, 3 months ago

Oxygen

Prince Meher 7 years, 3 months ago

Iron oxide=iron+water+air

ANSWER

How is water polluted

Posted by Danish Lone 7 years, 3 months ago

CBSE > Class 07 > Science

2 answers

Ayush ? 5 years, 9 months ago

Many substances that are hazardous to human health can enter water supplies. Chemical waste from factories is sometimes dumped into rivers and lakes, or directly into the ground. Pesticides (chemicals that kill insects) applied to farmland enter surface water and groundwater, often in large quantities.

Santosh Kumbar 7 years, 3 months ago

By the factory waste they directiley to river

ANSWER

Do you think an electromagnet can be used for separating plastic bags from a garbage heap ?Explain.

Posted by Suman Kumar 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Reshmina Begum 7 years, 3 months ago

No, an electromagnet cannot be used for separating plastic bags from a garbage heap

ANSWER

Definetion of battery

Posted by Suman Kumar 7 years, 3 months ago

CBSE > Class 07 > Science

2 answers

Prince Meher 7 years, 3 months ago

Two or more cell is make a battery

Shubham Singh 7 years, 3 months ago

The battery Was include tha mercary and DC power

ANSWER

what does a bimetalluc strip consists of

Posted by Jhon Thomas 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Yogita Ingle 7 years, 3 months ago

A bimetallic strip consists of two different materials with different expansion coefficients that are bonded together. For example, for brass and steel, the coefficients of linear expansion are:

Brass: 19 x 10^-6 /°C Steel: 11 x 10^-6/°C

When this bimetallic strip is heated, the brass expands more than the steel and the strip curves with the brass on the outside. If the strip is cooled, it curves with the steel on the outside.

Bimetallic strips are used as switches in thermostats.

ANSWER

What are the precautions should be taken if you are staying in cyclone hit area

Posted by Saraswati Bahadur 5 years, 9 months ago

CBSE > Class 07 > Science

2 answers

Yogita Ingle 7 years, 3 months ago

•Do not move out unless and until required.
• Keep a note of all the warnings given by the Meteorological Department.
• Keep emergency phone numbers of police, ambulance and fire brigade handy.
• Move people and valuable items to a safe place.
• Store hygienic drinking water.
• Help neighbours and friends.
• Avoid contact with wet electric lines and switches.
• Store enough food items in waterproof bags.
• Avoid going in flood water and be careful of snake bites.

5Thank You

Shri Sharma 7 years, 3 months ago

2+2=4

5Thank You

ANSWER

What are the precautions should be taken if you are staying in a cyclone hit area

Posted by Saraswati Bahadur 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Yogita Ingle 7 years, 3 months ago

• Do not move out unless and until required.
• Keep a note of all the warnings given by the Meteorological Department.
• Keep emergency phone numbers of police, ambulance and fire brigade handy.
• Move people and valuable items to a safe place.
• Store hygienic drinking water.
• Help neighbours and friends.
• Avoid contact with wet electric lines and switches.
• Store enough food items in waterproof bags.
• Avoid going in flood water and be careful of snake bites.

3Thank You

ANSWER

How many colours are there in sunlight

Posted by Anil Patil 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Yogita Ingle 7 years, 3 months ago

White light is called as white because it consists of seven colors. The sunlight splits into seven colors namely violet, indigo, blue, green, orange, and red. We usually call it as VIBGYOR. When we mix all these colors we just get one light which is the WHITE light.

ANSWER

What is thunderstorm?

Posted by Disha Gogoi 7 years, 3 months ago

CBSE > Class 07 > Science

2 answers

Hilal H 7 years, 3 months ago

a storm with loud noises and flashes of light in the sky (thunder and lightning)

Yogita Ingle 7 years, 3 months ago

Thunderstorm: Many a times, rain is associated with lightning. Rain with lightning is called thunderstorm. This happens mostly in the summer. Thunderstorm occurs frequently in hot and humid tropical areas, such as India.

In summer, the air rises up along with lot of moisture. After rising up to a certain height water vapour cools down and starts coming down in the form of water droplets. The swift drifting of water droplets creates electricity among clouds. This manifests in the form of lighting and sound. This is known as thunderstorm.

3Thank You

ANSWER

Define liver

Posted by Anu Jaswal 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Yogita Ingle 7 years, 3 months ago

Liver is the largest gland in the body. It is situated in the upper part of the abdomen on the right side. The liver performs various functions, such as manufacture proteins, including albumin and blood clotting factors; to synthesize, store, and process fats, including fatty acids and cholesterol; to metabolize and store carbohydrates; to form and secrete bile that contains bile acids to aid in the intestinal absorption of fats and the fat-soluble vitamins A, D, E, and K; to eliminate, by metabolizing or secreting, the potentially harmful biochemical products produced by the body, such as bilirubin, from the breakdown of old red blood cells and ammonia from the breakdown of proteins; and to detoxify, by metabolizing and/or secreting, drugs, alcohol, and environmental toxins.

ANSWER

Which gas release when acid react with metal

Posted by Manish Kataria 7 years, 3 months ago

CBSE > Class 07 > Science

3 answers

Nandini Rajanal 7 years, 3 months ago

Hydrogen gas

Anu Jaswal 7 years, 3 months ago

Hydrogen gas

Yogita Ingle 7 years, 3 months ago

Acid reacts with metal produces metal salt and hydrogen gas.
For example: Sodium reacts with hydrochloric acid to produce sodium chloride salt and hydrogen gas.
2Na + 2HCl → 2NaCl + H₂

ANSWER

Explain process of synthesis of food in plant?

Posted by Yug Singwalia 7 years, 3 months ago

CBSE > Class 07 > Science

2 answers

Nandini Rajanal 7 years, 3 months ago

CO2+H2O in the presence of sunlight and chlorophyll = C6 H12 O6+O2

Yogita Ingle 7 years, 3 months ago

Photosynthesis is defined as the process in which the chlorophyll-containing plant cells synthesize food in the form of carbohydrates, using carbon dioxide and water in the presence of solar energy.
Sources of raw materials required for photosynthesis:
(a) Water is taken in, from the roots of the plant and is transported to the leaves.
(b) Carbon dioxide from the air enters the leaves through the pores called stomata and diffuses to the cells containing chlorophyll.
(c) Solar energy is used to break water into hydrogen and oxygen. This hydrogen is combined with carbon dioxide to form food for the plants, which is ultimately used by the animals as well.

ANSWER

What is cylone

Posted by Dheeraj Nautiyal 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Rishika Roy 7 years, 3 months ago

A cyclone is a large scale of mass that rotates around a strong centre of low atmospheric pressure ?

ANSWER

what is conical flask

Posted by Bhumi Khare 7 years, 3 months ago

CBSE > Class 07 > Science

1 answers

Yogita Ingle 7 years, 3 months ago

An Erlenmeyer flask, also known as a conical flask or titration flask, is a type of laboratory flask which features a flat bottom, a conical body, and a cylindrical neck.